Quadratic STAAR Blitz

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

Which function is best represented by the graph?

• (x+9)(2x+7)

• (x-9)(2x-7)

• (x+7)(2x+9)

• (x-7)(2x-9)

Which value of x is a solution to this equation?

• x = -12

• x = -4

• x = -2

• x = -6

What is the solution set for

• {-5, -1.5}

• {2.5, 3}

• {1.5, 5}

• {-3, -2.5}

Which expression is equivalent to

• (x+1)(x+24)

• (x+2)(x+12)

• (x+3)(x+8)

• (x+4)(x+6)

The scatterplot and table show the weekly profit in dollars earned from the sales of pastries at seven different prices. The data can be modeled by a quadratic function.

Which function best models the data?

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