Preparing for Algebra

Simplify.

-4a^-2 ⋅ 2ab³

• -8b³/a³

• -6b³/a

• 6b³/a

• -8b³/a

• I don't know how to do this

Tags

CCSS.HSA.APR.A.1

Multiply out: (x-3)(x²+2x+7)

• x³-x²+x-21

• x³+5x+13x-21

• x³-3x²+7x-21

• x²+2x-3

• I don't know how to do this

Tags

CCSS.HSA.APR.A.1

Simplify the following radical: √150. Don't use a calculator.

• 5√15

• 5√2

• 5√6

• 15√5

• I don't know how to do this

(1 - 3i) (2 + 5i)

• 22-i

• 16-i

• 17-i

• I don't know how to do this

Tags

CCSS.HSN.CN.C.8

If f(t) = t² - t, find f(-8)

• -72

• -56

• 56

• 72

• I don't know how to do this

Tags

CCSS.HSF.IF.A.2

Solve −2|−2r − 4| = -12

• {3,1}

• {-3,-1}

• {-3}

• No Solution

• I don't know how to do this

Solve -4x + 14 ≤ 54

• x ≥ - 10

• x ≤ -10

• x ≥ 10

• x ≤ 10

• I don't know how to do this

Tags

CCSS.7.EE.B.4B

Write the equation of the line through the points (-6, -19) and (2, 5).

• y = -7/2x + 12

• y = 3x + 11

• y = -7/2x - 40

• y = 3x - 1

• I don't know how to do this

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

• I don't know how to do this

Which equation shows a function that is translated left 4 units and up 7 units?

• y = |x + 4| + 7

• y = (x - 4)² + 7

• y = (x + 7)² - 4

• y = |x + 4| - 7

• I don't know how to do this