Solve Quadratic Functions Review

Identify the roots of the graph:

• (-5,2)

• (5,0) (-2,0)

• (-1.5,0) (-12.25)

• (-5,0) (2,0)

What is the axis of symmetry for the following equation?
y=4x²-8x+9

• x=-8

• x=1

• x=-1

• x=2

When I want to find the maximum or minimum height of an object, I should_____

• Set the equation = 0 and solve.

• Use x = (-b/2a) as my answer.

• Substitute x = 0 into the equation.

• Find the y-coordinate for the vertex.

Members of the math club launch a model rocket from ground level with an initial velocity of 96 ft/sec. This can be modeled with the function h(t) = -16t² + 96t. What is the range of the function?

• 0 ≤ y ≤ 145

• y ≤ 145

• 0 ≤ x ≤ 6

• All Reals

Does this graph in the back have maximum or minimum value?

• maximum

• minimum

• neither

• both

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

What are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

Tags

CCSS.HSF-IF.C.7A

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined

What does "a" control in a graph of f(x) = ax²+ bx+ c?

• Opens up or down

• Where the graph crosses at X-intercept

• Where the graph crosses at Y-intercept

What is the y intercept for the equation:
y = -8x² + 3x - 7

• (0, -8)

• (0, 3)

• (0, 7)

• (0, -7)

Tags

CCSS.HSF-IF.C.7A