Quadratics Mixed Review

What is the vertex of the quadratic function: $y=x^2-6x+11$  

• (3,2)

• (-3,-2)

• (-3,2)

• (3, -2)

What is the axis of symmetry of y=2x²-4x+9?

• x=1

• x=-2

• x=-1

• x=4

Does y=-4x² have a max or a min value?

• max

• min

Tags

CCSS.HSF-IF.C.7A

Which of the following is the correct equation for the given graph?

• f(x)= (x - 2)² - 1

• f(x)= -(x + 2)² - 1

• f(x) = (x + 2)² - 1

• f(x) = -(x - 2)² - 1

Tags

CCSS.HSF-IF.C.7A

An object in launched directly upward at 64 feet per second (ft/s) from a platform 80 feet high. Its height is represented by the equation

s(t) = –16t² + 64t + 80

What will be the object's maximum height?

• 2ft

• 144 ft

• 80ft

• 64 ft

The axis of symmetry passes through which point?

• y intercept

• any random point

• vertex

• none of these

Identify the vertex and whether the graph opens up or down.

• (-1, 4); opens up

• (1, 4); opens up

• (-1, 4); opens down

• (1, 4); opens down

y=2x²-6x+1 is in what form?

• vertex form

• standard form

• factored form

• cannot be determined

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined

Solve the equation 5n² + 7n - 90= 0 by using the quadratic formula.

• {4.15, -2.65}

• {5, -3.6}

• {3.6, -5}

• no solution

Tags

CCSS.HSA-REI.B.4B