General Mathematics Quiz

Which of the following real-life relationships represent a function?

• assigns to each person the name of his aunt

• assigns to each person the name of his father

• assigns to each person the name of his pets.

• each cellular phone unit to its phone number.

Evaluate the function h(x) = x + 31, when x = 2.5?

• 34

• - 34

• 33

• - 33

Give the value of the function c(x) = 5x^3 - 18 at c(3).

• 117

• 27

• 153

• 63

Evaluate: h(x) = 5x^2 - 8x + 12 given x = 5.

• 22

• 145

• 97

• - 3

Which of the following is the value of the function f(x) = 3x^2 - 15x + 8 given x = 3?

• 10

• - 10

• 16

• 19

Evaluate the function: f(x) = 3x^2 - 5x + 2 given x = 2x + 5.

• 12x^2 + 50x + 52

• 12x^2 - 50x + 52

• 12x^2 + 50x - 52

• 12x^2 - 50x - 52

What is the sum of 3x, 5x, (-6x), 8x, and (-10x).

• 0

• 1

• x

• 2x

If f(x) = 2x - 5 is one of the addends, what must be added to it to get 4x - 2.

• 2x - 3

• 2x + 3

• 3x + 2

• 3x - 2

Find the value of the function h(x) = 5x - 4 if x = 8.

• 44

• ± 6

• 211

• ± 3

For what values of x can we not evaluate the function f(x) = 3x - 7x^2 - 4

• ± 4

• ± 3

• ± 2

• ± 1