CCSS.Math.Content.8.F.B.4

Jerry has $20 and makes $7 per hour. Which equation represents the total amount of money Jerry has after working x hours?

• y = 7x + 20
• y = 7 + 20x
• y = 20 + 7

Tags

CCSS.Math.Content.8.F.B.4

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage.  If Juanita uses x minutes of airtime, what is an equation that can be used to determine her monthly cell phone bill (C)?

• C = 0.20x + 15
• C =15 (0.20x)
• C = 15 + x + 0.20
• C = 0.20 + 15x

Tags

CCSS.Math.Content.8.F.B.4

The total cost in dollars, c, to purchase video games online can be found using the function c = 16.95x + 4.75, where x is the number of video games purchased.  If at least 4 games but no more than 7 games are purchased online, what is the range of the function for this situation?

• {4, 5, 6, 7}
• 4 ≤ x ≤ 7
• 72.55 ≤ c ≤ 123.50
• {72.55, 89.50, 106.45, 123.40}

Tags

CCSS.Math.Content.8.F.B.4

CCSS.Math.Content.HSA.CED.A.1

What is the y-intercept of this graph?

• -1
• 3
• -3
• -2

Tags

CCSS.Math.Content.8.F.B.4

At 10:00 pm, there was already 8.6 inches on the ground. If it is to snow 2 inches per hour after, what equation could be used to model the situation after x amount of hours.

• y = 2x + 8.6

• y = 2x - 8.6

• y = -2x + 8.6

• y = 1/2x + 8.6

Tags

CCSS.Math.Content.8.F.B.4

a perfect point is (60,4) what is the rate of change? *hint* y/x

• .06

• 1/15

• 15

• 2

Tags

CCSS.Math.Content.8.F.B.4

CCSS.Math.Content.8.EE.B.5

What is the rate of change?

• 9.25

• 1.25

• 19.25

• 0.25

Tags

CCSS.Math.Content.8.F.B.4

What is the equation of the line that passes through the points: (2, 9) and (22,-1)

• y= -8x

• y= -2/3x + 3

• y= -1/2x +10

• y= -5x + 12

• No solution

Tags

CCSS.Math.Content.8.F.B.4

CCSS.Math.Content.8.EE.B.6

A rocket is 1 miles above the Earth in 30 seconds and 5 miles above the Earth in 2.5 minutes. What is the rockets rate of in miles per minute?

• 2 miles/minute

• 1 mile/minute

• 30 miles/minute

• 1.75 miles/minute

Tags

CCSS.Math.Content.8.F.B.4

CCSS.Math.Content.8.EE.B.5

Amelia has $100 in her savings account and plans on solving $20 per week. Write an equation to represent this situation.

• y = 100x

• y = 20x

• y = 20x + 100

• y = 100x + 20

Tags

CCSS.Math.Content.8.F.B.4