Ryan's Scribe post

9.The pattern can be represented by the formula b=4f, where b is the number of black dots and f is the figure number.

A) Make a table of values for the number b in figure 1 to 5.

B) Use the formula to determine the number of b in figure 60.
I did is multiply figure 5 by 2 to get 10 and get 40 black dots. Also I multiply figure 10 by 6 to get figure 60 so I multiply 40 black dots by 6 to det 240 black dots.

8.The graph shows the cost of a new drink called Zap and is $3 each.
A)What is the price per can of Zap? Price per can of Zap is $3.

B) Describe three patterns on the graph.
n=3c
Over 3 and up 1 each time.
3ct3 = n+1

C) If you placed a point ay (0,0), what would each coorinate represent.
O cans and 0 dollars. Because their is nothing that is half a can drinks.

7. To describe the graph in #3, you can say that x increased by 1, and y decreased by 1.

(3) Which table of value represent linelar relation shown.

A. X) 0 1 2 3 4         B. X) 0 1 2 3 4   C. X) 0 1 2 3 4  D. X) 0 1 2 3 4
     Y) 8 6 6 5 4             Y) 8 7 6 4 4        Y) 8 7 6 5 4       Y) 8 6 4 3 2
The answer for 3 is c.

Jesryll's Scribepost

Practice Test ( page 362)

Answer: c. expression, because equation has an equal sign and expression doesn't have an equal sign.

Answer: b. 3b, because the pattern is multiply the b by 3.

Answer: c 

The answer is c.

Here is the Link!

Breister's Scribe Post

Breister's Scribe Post Chapter 9 Review

         Pages 360-361

         

B) Yes, because the point of the line is in a straight line

C) Yes, because he can still work half the time and get paid half also.

A) The graph is about a grade 8 car wash, its about how much car they have cleaned and the price of it.

B) The pattern is $ = 10c, and the point is in a strait line.

C) A cost of one car wash is $10

D)

E) $150

A) The pattern on the graph is 3 units to the right and 9 units up.

B)

C)  3x +2

      3(2) +2

      6 + 2

         8

D) 3x +2

     3(5) + 2

     15 + 2

        17

Click this LINK to help you learn of solving algebraic question

Kamilah's Scribe Post

Chapter 9.3

8. Evaluate y = 7x + 3 using each value.

a. x = 1

 b. x = -4

c. x = 0

d. y = 17


















7. Evaluate each equation using the give value.

a. y = 5x - 3 when x = 6

b. y = x - 8 when x = 5

c. y = -5x when x = -2

d. y = x when y = 25 

Practice Test 

           

Yes it is a linear relation because it has the same pattern and goes in a straight line.

Here's A helpful link

Andrew's Scribepost

Chapter Review Pg. 360 Questions: 7 and 8.

                                                                                                                          

    B) Yes, because the points on the graph are straight. 

    C) Yes its possible. Klaus can only work for part of the hour. 

 Question 8

a) The graph shows how many cars were washed at the grade 8 car wash. 

b) The points are showed as a straight line meaning that its a linear relation. 

c) The cost for 1 car wash is $10.

d) table of values. 

1   10 

2   20 

3   30

4   40

5   50 

9.3 Practice Test Page 362. Questions: 2 and 3

    

  

The correct answer would be letter "B". If we used that for base 1,2 and 3 it would work. 

Ex: 3 (1) = 3 

       3 (2) = 6

       3 (3) = 9

The graph relates to the letter C on the table of values. It's the answer because the numbers on the table of values are plotted on the graph. 

Jira’s Scribepost

11.)  The first variables are   m,  p,     d .

                                                    +3   +2    +1
   
       The second variables are   n,    q,    c.

                                                    +2    -4    +3
                                                                    +2
                                                                    +3
                                                                    +2
12)

        












b) Yes!!

 c)      2x + 1 = y
        2(12) + 1 = y
           24 + 1 = y
             25 = y



13) each variable represents  a hour
 
b)  15 represents the kilometres

c)

 
 

e)  No! because you can’t know for sure how much kilometre you will go.
 
f) 15t = d
   15(8) = d
   120 = d

14)    7x = y

graph

table of values

b)  3x - 2 = y
 

graph

table of values

 




c)   -2x + 3 = y

 graph

 
 table of values

 

Jessica D's Scribepost Chapter 9 Review

Pages 360-361

Question 7.
a)


 

 

b) Yes, because the points on the graph are in a straight line.

c) Yes, because he can work for half of an hour and get paid half of the amount or he can work for 1 hour and a half and get paid for that amount as well.

 

Question 8.

a) The graph shows how many cars were washed at the grade 8 car wash and the total cost they earned.

b) The points are in a straight line with means this is a linear relation.

c) $10.00 for one car.

d)

 

e) $150

 

Question 14.

Equation A: y=7x

 



 

y= -9 when x= -7

Equation B: y=3x-2

y= -23 when x= -7

Equation C: y=-2x+3

y= 17 when x= -7

 

There wasn't any videos or a website that would help with what we are learning right now.



AJ's Scribepost

Chapter 9 review page 360-361.

7.A) Here is my table of values.

B.) Does the graph represent a linear relation? explain.

answer: Yes, the graph represents a linear relation because the points on the graph lay on a straight line.

C.) Is it possible to have other points between the ones on this graph? Explain.

Answer : 

8.) Describe what the graph is about.

Answer: The graph shows the amount of money earned at a grade 8 car wash based on the number of the car washed.

B.) Describe patterns on the graph.

Answer: For every car that is washed $10 is collected. the pattern on this graph is 10  

C.) what is the cost of one car wash? 

Answer: the cost of one car wash is $10.

D.) Table of values.

E.) If 15 cars are washed, what is the income for the grade 8? 

Answer: 15 x 10 = 150, $150 is the income of the grade 8.

9.) Describe the patterns on the graph.

Answer: The point lie in a straight line. the pattern is +2.

B.) My table of values.

C.) Y=  when X is 2 

D,) Y= 17 when X is 5

Gem's Scribepost

Pages 357-358

Question #6

a)

b)

c) No it is not reasonable to have points between the ones on the graph because the x-axis (Number of dogs) will be a whole number.


Question #9

a)

b)

c)

d)


Question #12
a) (0,0)
b) y = -1
c) y = -3











Question #15

Answer!








b) If we were to continue the table the most logical value to use for the Mass of Purchase would be 400 because you are adding 100 to get to the next number. Example: 100+100=200 and 200+100=300.
So for the next number it would have to be 400 because 300+100=400.
The cost of 400(g) would be 320 cents because 240+80=320.
Example: 80+80=160 and 160+80=240..etc!

c)