Equation Function

Find the inverse of f(x) = -4x - 12

• f^-1(x) = 4x - 3

• f^-1(x) = -1/4x - 3

• f^-1(x) = 1/4x + 3

• f^-1(x) = -4x - 3

Tags

CCSS.HSF-BF.B.4A

Are the blue and red graphs inverse functions?

Why do you think so?

Tags

CCSS.HSF-BF.B.4C

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function

h = -16t² + 64t + 960.

How many seconds did it take for the ball to reach its maximum height?

• 10 seconds

• 64 seconds

• 960 seconds

• 2 seconds

What are the roots of the function
f(x)= (x - 2)(x + 3)?

• x = - 2 or x = 3

• x = 2 or x = -3

• The are no real roots

• x = 2 or x = 3

Tags

CCSS.HSF-IF.C.7C

Which equation below is a quadratic?

• y=9x+5

• y=3x²-6

• y=5x³+6

• x=3^x

What are the zeros of the quadratic function?
y = x² - 2x - 15

• x = -2
  x = -15

• x = -3
  x = 5

• x = 3
  x = -5

• x = 1
  x = -16

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What are the green dots called?

• axis of symmetry

• vertex

• parabola

• roots or x-intercepts

Tags

CCSS.HSF-IF.C.7A

The height of a batted baseball is modeled by the equation above, where t is measured in seconds and h is measured in feet. At what time t (in seconds) does the ball attain its maximum height?

• 2 seconds

• 1.5 seconds

• 3.5 seconds

• 5 seconds

What is the equation for the line of symmetry?

• y = 3

• x = 3

• x = 5

• x = 1

In the equation

x² - 5x + 7= 0,

match each leading coefficient with its correct letter

for a, b and c

• a = 0, b = 5, c = 7

• a = 1, b = -5, c = 7

• a = 7, b = 5, c = 1

• a = 1, b = 5, c = 7