Quadratic Solutions on a Graph, Table, Equation

Which of the following represents the solutions to the equation:  
3x² + 4x – 20 = 0?

• 0 and -20

• 3.33 and -2

• -3.33 and 2

• -0.67 and -21.33

Tags

CCSS.HSA-REI.B.4B

Solve by graphing.

Separate numerical answers with a comma

Use the graph to determine the solutions.

• -1 and -3

• 1 and -3

• 1 and 3

• -1 and 3

Using the graph of y = -1.5x² + 12x - 23 shown here, what are the values of x when y = -5?

• x = 4

• x = 2, 6

• x = 3.2, 4.8

• cannot be determined on the graph

The graph shown here represents which quadratic function?

Tags

CCSS.HSF-IF.C.7A

• MINIMUM, because the value of "a" is positive.

• MAXIMUM, because "a" times "c" is -12.

• CANNOT BE DETERMINED

Tags

CCSS.HSF-IF.C.7A

Given a quadratic equation in standard form, y = ax² + bx + c, how do you find the equation for the AXIS OF SYMMETRY?

If a quadratic equation has 2 solutions, they will be equal distance from the axis of symmetry.

• TRUE

• FALSE

Tags

CCSS.HSF-IF.C.7A

Describe the transformations from f(x) = x² to g(x) = -0.3x² + 4

• vertical compression and shift up

• reflection over x-axis, vertical compression, and shift up

• reflection over x-axis, vertical stretch, and shift up

• vertical stretch and shift down

Which graph will be the most vertically stretched compared to the quadratic parent function?

• g(x) = -x² + 9

• g(x) = 5x² + 1

• g(x) = 0.2x² - 11

• g(x) = -3x² - 6