function notation

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7

If h(a) = 3 - 2x², find h(-3).

• 33

• 21

• 39

• -15

Which ordered pair below would prevent this table from being a function?

• (10, 10)

• (2, 4)

• (6, 1)

• (-2, 0)

g(x) = 3x + 1
g(2) = _______

• 6

• 7

• 8

• 9

• 6

• -6

• 14

• -14

If f(x) = -4x - 5 and
g(x) = 3 - x,
what is g(-4) + f(1)?

• 7

• -2

• -9

• -10

Find f(2)

• 5

• 4

• 3

• 0

What is a function?

• For every input, there is exactly one output.

• For every output, there is exactly one input.

• When there is a polynomial expression

• When the degree of the polynomial is even.

What is the domain of the following function: f(x)=3x-1

• [-1,3]

• (-∞,∞)

• (-1,∞)

• (-∞,-1)

Which of the following functions have the range of all real numbers?

• f(x)=3x²+7x-1

• f(x)=√x-1

• f(x)=x³

• f(x)=5x⁴-10