Quadratic Equations

Which is these equations is a quadratic function?

• f(x)=2x+5

• f(x)=2^x

• f(x)=(x+1)³

• f(x)=(x-5)²

The highest or lowest point on a quadratic is called the...

• Max

• Vertex

• Axis of Symmetry

• Intercept

The line that goes through the vertex of a parabola is called the...

• Vertex

• Axis of Symmetry

• x-intercept

• y-intercept

The point (4, -3) is a...

• Maximum

• Minimum

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

• -1 and 3
• 1 and -3
• -1 and -3
• 1 and 3

The quadratic function y = -2x² + 4x + 6 is pictured. What are the solutions to the equation 7.5 = -2x² + 4x + 6?

• x = 0.5

• x = 1.5

• x = 1

• x = 8

• x = 6

What are the solutions to the quadratic equation?

• x = -4

• x = 1

• x = -1

• x = 2

• x = 4

This graph is...

• Concave up

• Concave down

If a quadratic has a vertex that is a maximum, then the quadratic is...

• Concave up

• Concave down