Unit 1 Test. Equations and Inequalities

Four students were given the expressions to simplify as shown. Which statement is NOT true?

• Frank’s expression simplifies to -6x + 14.

• Henry’s expression simplifies to 19 – 10x.

• Anthony’s expression simplifies to 3x + 4.

• Sean’s expression simplifies to 7x + 32.

Which value of n makes the equation true? 6.7n + 11 – 4.2n = 16.5

• n = 1.2

• n = 11

• n = 0.5

• n = 2.2

What is the solution set for the inequality? -4x + 11 > 8x + 59

• x < 4

• x > -4

• x < -4

• x > 4

Solve the equation below. Be sure to show your thinking.

-2.4 (5 – 5b) = - 13b – 87

• b = 3

• b = -3

• b = 5

• b = -5

Find the solution set to the inequality below. 7(-y + 3) > 3(9 - 2y)

• y < - 3

• y > 3

• y < -6

• y > 6

Mr. Peterson asked his students to write an equation with a solution of x = 0.5. Which student successfully completed the task?

• Jill only

• April only

• Both Jill and April

• Neither Jill nor April

Solve for x.

Mathematical Equivalence

OFF

• greater than or equal to
• less than or equal to
• greater than
• not quite
• no less than
• much bigger
• open
• negative