Finding Roots, Vertex

Solve the equation using square roots.
x² = 121

• 60.5

• ± 11

• ± 12

• 11

What are the solutions?

• -2, 1

• 1, 2

• -1,2

• 0,-4

Use the square root property to solve the Quadratic Equation.
2(x - 4)² = 200

• ±10

• -14, 6

• -6, 14

• 100

Solve

x² + 2x - 20 = 4

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

n² - 2n = 0

• n = 2 and 0

• n = -2 and 0

• n = 2

• n = 0

What is another word for zeros?

• y-intercepts

• roots

• vertex

• axis of symmetry

If the graph of a quadratic does not intercept the x axis at any point, then it has:

• Real Solution

• Real Solutions

• Half a Solution

• No Real Solution

Solve by taking square roots:

5m² + 1 = 6

• m = 1

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

What is the formula above primarily used for?

• Finding the axis of symmetry from standard form

• Finding the vertex from standard form

• Finding the vertex from vertex form

• Finding the y intercept from standard form

Solve:
x² - 49 = 0

• x = -7, x = 7

• x = -7

• x = 7

• x = -7, x = 1