Quadratic Intercept Form Word Problem

What is the factored quadratic equation in the following graph?

• ( x+ 2)(x + 6) = y

• x² - 8x + 12 = y

• (x - 2)(x - 6) = y

• (x - 4)(x + 4) = y

Tags

CCSS.HSF-IF.C.8A

CCSS.HSA-SSE.B.3B

What algebraic term are you solving for if the word problem is: The equation for leaping off a cliff is h = -16t^2 + 8t +24.  How long will it take for you to hit the water?

• Roots (Solutions)

• Axis of Symmetry

• Vertex

• y-intercept

What are the X-Intercepts, Roots, Zeros, and Solutions?

• {-8, 0}

• {8, 0}

• {4, -4}

• {-4, -4}

Tags

CCSS.HSF-IF.C.7A

In Projectile Motion Quadratic Word Problems, what does the y-value always represent?

• Time

• Height

• Distance

• Total

A kid launches a rock off of a cliff. The height of the rock after t seconds can be modeled by the graph shown. When does the rock hit the ground?

• 1.094 seconds

• 155 seconds

• 4.393 seconds

• None of the above

A kid launches a rock off of a cliff. The height of the rock after t seconds can be modeled by the graph shown. What is the height of the cliff?

• 1.094 ft

• 174.141 ft

• 155 ft

• 4.393 ft

• None of the above

Fireworks are fired from the roof of a 100-foot building. The equation h = -16t² +84t + 100 models the height, h, of the fireworks at any given time, t. How high do the fireworks get?

• 2.625

• 6.25

• 100

• 200

• 210.25

In Projectile Motion Quadratic Word Problems, what does the x-value of the vertex always represent?

• Time

• Height

• Distance

• Total

What are the solutions?

• -2, 1

• 1, 2

• -1,2

• 0,-4