Quadratics Assessment

Explain which method of solving quadratics would work best for the equation. Explain why.

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic by graphing.

Solve the quadratic by using square roots.

Tags

CCSS.HSA-REI.B.4B

Solve the equation. Check all the correct answers.

x² +7x - 30 = 0

• x = 10

• x = 3

• x = -10

• x = -3

Tags

CCSS.HSA-REI.B.4B

Solve the equation. Check all the correct answers.

x² - 10x - 24 = 0

• 12

• -12

• -2

• 2

Tags

CCSS.HSA-REI.B.4B

Compare the graph of y = -4x² to y = x²

• The graph would be wider and facing downward.

• The graph would be narrower and translated left 4.

• The graph would be wider and translated down 4.

• The graph would be narrower and facing downward.

Compare the graph of y = 2/3 x² + 3 to y = x²

• The graph would be narrower and translated up 3.

• The graph would be wider and translated right 3.

• The graph would be wider and translated up 3.

• The graph would be narrower and translated right 3.

Compare the graph of y = -2x² + 5 to y = x²

• The graph would be narrower and translated 5 up.

• The graph would be wider and translate 5 up.

• The graph would be downward facing, wider, and translated 5 up.

• The graph would be downward facing, narrower, and translated 5 up.

What is the vertex for y = -2x² + 8x - 11?

Tell whether the table represents a linear, exponential, or quadratic function.

• linear

• exponential

• quadratic

• none of the above