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

For lunch, Amanda had a hamburger and some potato chips. The hamburger totaled 325 calories and each chip had 12 calories. Write a liner equation to represent the situation.

• y = 12 + 325
• y = 12x  + 325
• y = 325 - 12x
• y = 325x + 12

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

Find the slope

• -5/3
• -3/5
• 5/3
• 3/5

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

Find the 2 missing OUTPUT values.

• 6 & 12
• 4 & 12
• 4 & 2
• 6 & 2

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

g(x) = -3x+7
h(x) = -x-10
Find g(x)/h(x) and the domain restriction

• -3x+7/-x-10 domain restriction x≠7/3
• -3x+7/-x-10 domain restriction x≠ -7/3
• -3x+7/-x-10 domain restriction x≠10
• -3x+7/-x-10 domain restriction x≠ -10

Tags

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

Is the function linear or nonlinear?
y = -x

• Linear
• Nonlinear

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

A textbook that cost $75.11 now sells for $72.50. Find the percent of change.

• 3% decrease
• 4% decrease
• 10% decrease
• 9% decrease

Tags

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

What rate describes how one quantity changes in relation to another quantity?

• Rate of Change
• Y-intercept
• X-value
• y = mx + b 

Tags

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

What is the average rate of change of [1, 5]?

• -0.65
• -0.75
• 3.75
• 4

Tags

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

Identify the slope and y-intercept of:
y = 1/5x + 5

• slope: 1/6   y-intercept:  4 
• slope: 1/5   y-intercept:  5 
• slope: 5/1   y-intercept:  5 
• slope: 1   y-intercept:  5 

Tags

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

A large pizza at Palanzio’s Pizzeria costs $6.80 plus $0.90 for each topping.The cost of a large cheese pizza at Guido’s Pizza is $7.30 plus $0.65 for each topping. Let x represent the # of toppings and y the cost. Which system of equations could be used to find the number of toppings when both companies cost the same amount?

• y = 6.80 + .65x

  y=7.30+.90x

• x + y = 6.80

  x + y = 7.30

• y = 6.80+.90x

  y = 7.30 + .65x

• y + .90x = 6.80

  y + .65x = 7.30

Tags

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