GEN MATH PRE-TEST

Given f(x) = 2x − 5 & g(x) = 3x + 4, solve for (g ○ f)(x).

• 11 − 6x

• 6x² − 7x − 20

• 6x − 11

• 6x^2 − 23x − 20

Given y = 3x + 7, what is f(−2)?

• $1$

• $-1$

• $-13$

• $13$

The composite function denoted by f ○ g is defined as _____________.

• 𝑓 ○ 𝑔)(𝑥) = 𝑓(𝑔(𝑥))

• (𝑓 ○ 𝑔)(𝑥) = 𝑔(𝑓(𝑥))

• (𝑓 ○ 𝑔)(𝑥) = 𝑓(𝑥)●𝑔(𝑥)

• (𝑓 ○ 𝑔)(𝑥) = 𝑔(𝑥)●𝑓(𝑥)

It is a set of ordered pairs (𝑥,𝑦) such that no two ordered pairs have the same xvalue but different y-values.

• relation

• function

• domain

• range

What is the domain of the equation 𝑦 = 3𝑥2 − 4𝑥?

• {𝒙:𝒙 ∈ 𝑹,𝒙 < −𝟏}

• {𝒙:𝒙 ∈ 𝑹,𝒙 ≠ 𝟏}

• {𝒙:𝒙 ∈ 𝑹}

• {𝒙:𝒙 ∈ 𝑹,𝒙 ≥ 𝟒}

Given 𝑓(𝑥) = 2𝑥 − 5 & 𝑔(𝑥) = 3𝑥 + 4, find (𝑓●𝑔)(𝑥).

• a. 6𝑥² + 23𝑥 − 20

• 6𝑥² − 23𝑥 − 20

• 6𝑥² − 20

• 6𝑥² − 7𝑥 − 20

If 𝑓(𝑥) = 𝑥 + 7 & 𝑔(𝑥) = 2𝑥 − 3, what is (𝑓 − 𝑔)(𝑥)?

• −𝑥 + 4

• 10 − 𝑥

• 𝑥 − 4

• 10 + 3𝑥

When dividing two fractions or rational expressions, multiply the dividend with the ________ of the divisor.

• reciprocal

• addend

• abscissa

• Theorem

What is the set of all possible values that the variable x can take in a relation?

• domain

• range

• equation

• function

Which of the following set of ordered pairs in NOT a function?

• (1,2),(2,3),(3,4),(4,5)

• (1,2),(1,3),(3,6),(4,8)

• (1, 1), (2, 2), (3, 3), (4, 4)

• (3, 2), (4, 2), (5, 2), (6, 2)