Mr. T Algebra EOC 10 (Quadratics)

What is the vertex of

f(x) = x² + 4x - 2

• (-2, -6)

• (2, 10)

• (-2, -14)

• (2, 8)

Select all of the valid solutions of the equation:

x² + x = 20

• -20

• -5

• 1

• 4

• 9

How does the function g(x) compare to the parent function f(x) = x²

• Translated 3 positions to the right

• Translated 3 positions to the left

• Reflected upside down

• Translated 3 positions up

What is the axis of symmetry of the graph of

f(x) = 4x² - 24x - 2

• x = 6

• x = 3

• x = -3

• x = 1/3

What is the y-intercept of

f(x) = 4x² - 24x - 2

Which quadratic function models the graph?

The height of a golf ball is represented by the function

h(x) = -16x² + 50x + 5

where h(x) is the height of the ball and x is the number of seconds after it hits the club. Which of the following describes the most appropriate domain of the function?

• all integers

• positive integers

• all real numbers

• positive real numbers

Select the solutions of

x² + 6x = 7

• 3, 9

• 6, 7

• 1, -7

• 3, 4

How many real solutions does the equation

2x² + 5x + 7 =0

• 1

• 0

• 2

• 3

Select the solutions of

x² - 20x + 27 = 8

• 0

• 1

• 3

• 9

• 19