CCSS.Math.Content.HSA.REI.C.7

A company test marketed an item at different prices in a region of the country.  The scatterplot above shows the item prices and the profit made by the company when the item sold at different item prices.  A quadratic model that best fits the data is also shown.  For a price of $60, which of the following best approximates the percent increase from the test market profit to the profit that the model predicts? 

• 50%
• 75%
• 100%
• 200%

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CCSS.Math.Content.HSA.REI.C.7

How many solutions does this graph have?

• one
• two
• no solutions
• cannot be determined

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CCSS.Math.Content.HSA.REI.C.7

Given the system of equations:
y = x² + 3x - 5
y = x + 3
When x = -4, what is the value of y?

• -1
• 1
• 7
• -33

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CCSS.Math.Content.HSA.REI.C.7

What is the green dashed line called?

• roots or x-intercepts
• parabola
• axis of symmetry
• line of dashes

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CCSS.Math.Content.HSA.REI.C.7

Find the solution(s):
y = x² - 4x + 6
y = x + 2

• (1, 4)
• (-1, 1) and (4, 2)
• (1, 3) and (4, 6)
• (1, 4) and (3, 6)

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CCSS.Math.Content.HSA.REI.C.7

Determine the number of solutions to the given linear-quadratic system.

• 0 solutions
• 1 solution
• 2 solutions
• 3 solutions

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CCSS.Math.Content.HSA.REI.C.7

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• line of dashes

Tags

CCSS.Math.Content.HSA.REI.C.7

If the rocket was at a height of 5 feet at 1 seconds, at what other time was the rocket at a height of 5 feet?

• It was never at 5 feet again.

• 6 seconds

• 5 sconds

• 3 seconds

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CCSS.Math.Content.HSA.REI.C.7

Find the area of the region bounded by the curves y=x² and y=√x

• .444

• .666

• .333

• .456

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CCSS.Math.Content.HSA.REI.C.7

What is the initial height of the parabola?

• h = 0.563

• h = 10.063

• h = 5

• h = 1.356

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CCSS.Math.Content.HSA.REI.C.7