Evaluating Functions and Linear Relationships

What is the independent variable in the equation y = 3x - 7?

• 7

• x

• 3

• y

In function notation, what does f(x) replace?

• 7

• y

• 3x

• x

If f(x) = 4x - 8, what is f(3)?

• 12

• 8

• 16

• 4

What is the output when f(x) = -3x^2 + 4 and x = -2?

• 8

• 4

• -4

• -8

If f(x) = x^2 - 2, what is f(a)?

• a^2 + 2

• a + 2

• a - 2

• a^2 - 2

Which operation should be performed first when evaluating f(x) = -3x^2 + 4 for x = -2?

• Exponentiation

• Multiplication

• Subtraction

• Addition

What is the result of G(10) if G(x) = x / (x + 8)?

• 5/9

• 10/18

• 1/2

• 5/8

If f(x) = -x + 4, what is f(-2)?

• -2

• 6

• -6

• 2

What does function notation help to identify?

• The input value

• The output value

• None of the above

• Both input and output values

What is the final step in evaluating a function using function notation?

• Simplifying the expression

• Identifying the input

• Writing the function notation

• Combining like terms