Functions Review

Solve

• 125

• 5

• 1/5

• 625

Tags

CCSS.8.EE.A.1

The graph shows that the price of bananas depends on the number of pounds purchased.  What is the unit rate for this data?

• $5 per pound

• $1.25 per pound

• $1.00 per pound

• $0.80 per pound

Tags

CCSS.7.RP.A.2D

The graph shows the speed of 2 cars.  The speed of the blue car is 30 miles per hour.  Based on this graph, what is the best estimate of the speed of the red car?

• 20mph

• 30mph

• 45mph

• 60mph

Tags

CCSS.8.EE.B.5

What is the value of y in the following system of equations:
y=2x
y=4x-8

• 0

• 4

• 8

• 10

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

What is the solution of the following system?  (The intersection)

• (-0.5,8.5)

• (-0.5,0.5)

• (0,4)

• (2,-14)

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

The equation y=50x+30 represents the amount of money, y, in Amy’s savings account over time, x. The equation y=30x+50 represents the amount in Sally’s savings account. How does the graph of Sally’s account differ from the graph of Amy’s account?

• The graph representing Sally’s account starts lower on the y-axis.

• The graph representing Sally’s account starts closer to the origin.

• The graph representing Sally’s account is steeper.

• The graph representing Sally’s account is flatter.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

The points (–3, –5), (0, 4), and (3, 13) lie on the same line. Which equation describes the function for that line?

• y=2x+1

• y = 3x + 4

• y = x + 4

• y = x + –2

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

What appears to be the solution to the system of equations shown in the graph below?

• (-4,-2)

• (-1,6)

• (-2,-6)

• (4,8)

Tags

CCSS.8.EE.C.8B

Is the relation a function?

• Yes, each input has exactly one output

• Yes, each output has exactly one input

• No, each output has more than one input

• No, each input only shares an output

Tags

CCSS.8.F.A.1

Use the table to write a linear function that relates y to x.

• y = x - 4

• y = -x + 4

• y = x + 4

• y = -x - 4

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2