quadratics

select the equation that are squares of linear expressions.

• x^2+6x+36

• p^2-6p+9

• (2d+8)(2d-8)

• x^2+36

Tags

CCSS.HSA.APR.C.4

Select the equations that is equivalent to x^2+6x=16

• x^2+6x+9=0

• x^2+6x+9=16

• x^2+6x+9=25

• (x+3)^2=0

Tags

CCSS.HSA-REI.B.4B

A quadratic function is defined by f(x)=x^2-8x-4. Which expression also defines f and best reveals the maximum or minimum of the function?

• (x-4)^2+20

• x(x-8)-4

• (x-4)^2+12

• (x-4)^2-20

Solve the equation by completing the square. x^2-12x=-20. Write answer but show work on a piece of paper and take a picture.

Tags

CCSS.HSA-REI.B.4B

Solve the equation by completing the square. 9x^2+12x+5=10. Write answer but show work on a piece of paper and take a picture.

Tags

CCSS.HSA-REI.B.4B

What are the solutions for this equation? 4x^2-5x-6=0

• 3,4

• 2,3/4

• -3/4,2

• 0,2

Tags

CCSS.HSA-REI.B.4B

If we add 4( a rational number) to -4+√5, What is the sum? Is the sum rational or irrational

• neither

• irrational

• both

• rational

Tags

CCSS.7.NS.A.1D

• A community theater uses the function p(d)=-4d^2+200d-100 to model the profit (in dollars) expected in a weekend when the tickets to a comedy show are priced at d dollar each. Which equation would you use to find the prices at which the theater would earn $1,500 in profit from the comedy show each weekend.

• -4d^2 +200d-100=40

• -4d^2 +200d-100=10

• -4d^2 +200d-100=-1500

• -4d^2 +200d-100=0