College Algebra Summer 2025 Final Exam

• (−∞ − , 4 or 2, 5 ]

• (− ∞ 4, 2 or 5, )

• (−∞ − , 4 or 2, 5 )

• (−∞ −, 4) or (2, 5]

This diagram shows a one to one relationship. Select the correct answer.

• Yes, each element in the first set is paired with a unique element in the second set.

• No, some elements in the first set are paired with the same element in the second set.

• No, some elements in the second set are not paired with any element in the first set.

• No, each element in the first set is paired with multiple elements in the second set.

• log_5(625) = 4

• log_4(5) = 625

• log_5(4) = 625

• log_4(625) = 5

Solve the system using elimination or substitution. -10x - 3y = -18 -7x - 8y = 11

• (-7, -10)

• (-4, 3)

• (3, -4)

• (2, -1)

Solve the system of equations using elimination or substitution:

3x - y = 28

3x + y = 14

• (8, -4)

• (-7, 7)

• (7, -7)

• (-4, 8)

Solve the system using elimination:

x - y + z = 8

2x + 3y - z = -2

3x - 2y - 9z = 9

Fill in the values of x, y, and z.

Mathematical Equivalence

ON

• not a one-to-one

Solve the inequality. Express the answer in interval notation. |5x - 1| + 7 ≤ 9

• [0, 0.4]

• (-∞, 0]

• [0.2, 1]

• [0.1, 0.5]