Quiz about Equations from: Graphs and Word Problems

Question 1

Give the equation for the graph

Accepted Answer

y = - 2x + 4

Answer

y = 5x - 3

Answer

y = 4x + 2

Answer

y =-2x + 5

Question 2

What is the equation of the line?

Accepted Answer

y = -4/5x + 3

Answer

y = -3/4x + 3

Answer

y = 4/5x + 3

Answer

y = -4/5x

Question 3

Write the equation of the line.

Accepted Answer

y = 1/3x - 2

Answer

y = -1/3x - 2

Answer

y = 3x - 2

Answer

y = -3x - 2

Question 4

Which is the graph of y=-x+2?

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 5

What is the y-intercept?

Accepted Answer

7

Answer

0

Answer

1

Answer

2

Question 6

What are the x- and y -intercepts on this graph?

Accepted Answer

(5,0), (0,5)

Answer

(0,5), (0,5)

Answer

(5,0), (5,0)

Answer

(0,0), (5,0)

Question 7

Write the equation for the line in slope-intercept form.

Accepted Answer

y= 4x+3

Answer

y= -1x+3

Answer

y=1/4x+3

Answer

y= -4x+3

Question 8

Which of the following equations may not be used to model the graph shown?

Accepted Answer

y = -2x + 4

Answer

y = 2(x + 2)

Answer

2x - y = -4

Answer

y = 4 + 2x

Question 9

Which of the following is true about the graph shown?

Accepted Answer

It passes through the point at (1, 5).

Answer

It has a positive rate of change.

Answer

It has an x-intercept at (9, 0).

Answer

It is non-linear.

Question 10

A driving range charges $4 to rent a golf club plus $2.75 for every bucket of golf balls you hit. Write an equation that shows the total cost c of hitting b buckets of golf balls.

Accepted Answer

c = 2.75b + 4

Answer

c = 2.75b

Answer

c =  4b- 2.75

Answer

c = 2.75b - 4

Question 11

Belinda's car needed repairs. The mechanic charged him $140 for the parts and an additional $48 an hour for labor. Write an equation that models this situation.

Accepted Answer

y = 48x +140

Answer

y = 140x +48

Answer

y = -48x +140

Answer

y = 48x

Question 12

Speedy Boat Rental charges a $15 deposit fee plus $2 for each hour of use to rent a paddle boat.  Write an equation for C, the total cost, to rent the boat for h hours.

Accepted Answer

C = 2h + 15

Answer

h = 2C + 15

Answer

C = 15h + 2

Answer

h = 15C + 2

Question 13

Which equation is being represented by this line?

Accepted Answer

y = -1x + 2

Answer

y = 1/2x + 2

Answer

y = 3x -4

Answer

y = -3x +2

Question 14

Graph. y = 2/3x - 3

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 15

Graph. 3x + 4y = 12

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 16

Graph. y = -4

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 17

Graph. x = 1

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 18

What is the slope in the picture?

Accepted Answer

Negative

Answer

Positive

Answer

Zero

Answer

Undefined

Question 19

What is the slope in the picture?

Accepted Answer

Positive

Answer

Negative

Answer

Zero

Answer

Undefined

Question 20

A holiday meal costs $12.50 a person plus a delivery fee of $30.

Accepted Answer

y = 30 + 12.5x

Answer

y = 12.5 + 30

Answer

y = 12.5 + 30x

Answer

y = 30 - 12.5x

Question 21

Sonia has $40 in her lunch account and pays $2 each day to eat lunch.

Accepted Answer

y = 40 - 2x

Answer

y = 40 + 2x

Answer

y = 2 + 40x

Answer

y = 2 - 40x

Question 22

Zara made an initial deposit to a bank
account and then added a fixed
amount every week. The table shows
the money in her account. Write an
equation in slope-intercept form to
represent the situation.

Accepted Answer

y = 20x + 120

Answer

y = 30x + 100

Answer

y = 120x + 120

Answer

y = 50x + 100

Equations from: Graphs and Word Problems

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