Algebra review

Simplify the expression.

(-8.6)⁰

• -1

• 0

• -8.6

• 1

Find the vertex for the equation,

• (-2,5)

• (-3,-5)

• (3,-5)

• (3,5)

Evaluate the function rule for the given value.

f(x) = 3^x , for x = -5

• -15

• 1/729

• 1/243

• -125

Which function models the data in the table below?

x y

1 4

2 16

3 64

4 256

• . y = x⁴

• y = 4x

• y = x + 3

• y = 4^x

Simplify the difference.

(-7x – 5x⁴ + 5) – (-7x⁴ – 5 – 9x)

• 2x⁴ + 2x + 8

• -14x⁴ + 10x + 10

• -14x⁴ – 10x + 10

• 2x⁴ + 2x + 10

Factor the expression.

20x² + 22x – 12

• 2(5x – 2)(2x + 3)

• 2(5x + 2)(2x – 3)

• (10x – 2)(4x + 3)

• 2(5x + 4)(2x – 3)

Find the approximate distance between the two points (5,1) and (-3,-4).

• 89

• 3.6

• 9.4

• 8.4

simplify √(400/5)

• 4√5

• (16√5)/5

• 160

• (16√5)/√5

If n = -3, which expression has the least value

• n²n⁰

• nⁿ

• n⁸n^-5

• –nⁿn^-4

What do you know about the graph of a quadratic function whose discriminant is negative?

• It is always a maximum function.

• It is always a minimum function.

• It never crosses the x-axis.

• It’s vertex is on the x-axis.