Math unit 4 test

Haley's car gets at least 18 miles per gallon. If she plans a trip that is 200 miles, what is the minimum number of gallons she'll need?

12

Three times a number is at most negative six. Find A ∩ B if A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}.

3x ≤ -6 {7}

|x| < 3

empty dots full line

|x| + 1 > 2

empty dots two full lines

Which of the following is a solution of y > |x| - 6?

(-5, 1)

Which of the following is a solution of y - x < -3?

(6, 2)

x ≥ 4

full dot right

|x| = 7

full dots not line

3x - 2y ≥ 6

full line left

{x | x < 4} ∩ {x | x > -2}

full line middle

3x + 1 < 7

full line on left

It must exceed ten.

x > 10

The graph shown is the solution set for which of the following inequalities?

y < |x + 3|

{x | x I, x ≥ 3}

{3, 4, 5, 6, ...}

Solve (x + 2 < 5) ∩ (x - 7 > -6).

{x | 1 < x < 3}

Solve 7x + 1 < 4(x - 2).

{x | x < -3}

Which of the following has no solution?

{x | x < 0} and {x | x > 0}

Solve 4(x - 3) - 2(x - 1) > 0.

{x | x > 5}

Given: -x > 6.

{x | x R, x < -12}

Which of the following sets would have a graph with an open circle on 5 and a ray pointing left on the number line?

{x | x R, x < 5}

Given: x - 7 > -2.

{x | x R, x > 5}

Which of the solution sets is all real numbers?

|x| > -1

If A = {4, 7, 10, 13, 17} and B = {3, 5, 7, 9}, then which of the following statements is false?

B A

Which of the following describes graphing y ≥ |x| + 4?

Translate y = |x| up 4 units and shade inside the V.