STAAR Review 2

The graph of a quadratic function is shown on the grid.

Which function is best represented by this graph?

• f(x) = x² + 3x - 4

• f(x) = -x² - 3x + 4

• f(x) = x² - 3x - 4

• f(x) = -x² + 3x + 4

Tags

CCSS.HSF-IF.C.7A

What is the solution to 8x - 3(2x - 4) = 3(x - 6)

• 6

• 2

• 30

• No Solution

A lifeguard earns $320 per week for working 40 hours plus $12 per hour worked over 40 hours. A lifeguard can work a maximum of 60 hours per week.

Which graph best represents the lifeguard's weekly earnings in dollars for working h hours over 40?

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Tags

CCSS.8.EE.B.5

A shoe company is going to close one of its two stores and combine all the inventory from both stores. These polynomials (above) represent the inventory in each store.

Which expression represents the combined inventory of the two stores?

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Tags

CCSS.HSA.APR.A.1

The graph of the quadratic function f is shown on the grid. What is the y-intercept of the graph of f?

• 4

• -4

• 5

• -5

Tags

CCSS.HSF-IF.C.7A

A particular type of cell doubles in number every hour. Which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells?

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Tags

CCSS.HSF.LE.A.2

What is the slope of the line represented by 5x - 2y = 24

• -2

• 24/5

• -12

• 5/12

Tags

CCSS.8.EE.B.5

Which expression is equivalent to 6x² + 13x + 5

• (2x + 5)(3x - 1)

• (2x - 5)(3x + 1)

• (2x + 1)(3x + 5)

• (2x - 1)(3x - 5)

A bus travels two different routes: the Green Route and the Blue Route. The routes are different lengths.

•On Monday the bus traveled the Green Route 6 times and the Blue Route 5 times, traveling a total of 52 miles.

•On Tuesday the bus traveled the Green Route 12 times and the Blue Route 13 times, traveling a total of 119 miles.

What is the length of the Green Route in miles?

• 4.4 mi

• 4.5 mi

• 6.4 mi

• 6.8 mi

Tags

CCSS.8.EE.C.8C