Chapter 7 Review- Ms Stone

Solving and graphing Inequalites

100

Solve:
x+6>14x

x > 8

200

Solve:
4x≤20

x ≤ 5

300

x−3<7

x < 10 (open circle at 10, shade left)

400

−3x>12

x < -4 (flip sign)

500

5x−10≥15

x ≥ 5

Multi-Step Inequalities

100

Solve:
2x+4<10

x < 3

200

Solve:
3x−5≤16

x ≤ 7

300

Solve:
4x+8>2x+18

x > 5

400

Solve

−2x+6≤10

x ≥ -2

500

Solve:
5(x−2)>3x+4

x > 7

Compound Inequalities

100

Solve:
3<x<9

All numbers between 3 and 9

200

Solve:
x≥4 AND x≤10

4 ≤ x ≤ 10

300

Solve:
x<−2 OR x>5

Two separate regions

400

Solve:
2x+1≤9 AND 3x−3>0

1 < x ≤ 4

500

Solve:
−1≤2x+3<7

-2 ≤ x < 2

Absolute Value Inequalitiesme

100

Solve:
∣x∣=5

x = 5 or x = -5

200

Solve:
∣x∣<3

-3 < x < 3

300

Solve:
∣x∣>4

x < -4 OR x > 4

400

Solve:
∣x−2∣≤6

-4 ≤ x ≤ 8

500

Solve:
∣2x∣>10

x < -5 OR x > 5

Compound Events (Probability)

100

What is the probability of flipping heads on a coin?

1/2

200

Probability of rolling a 3 on a fair die?

1/6

300

Rolling a die AND flipping heads?

1/6 × 1/2 = 1/12

400

Probability of NOT rolling a 1 on a die?

5/6

500

Probability of drawing a red card AND a king from a standard deck?

2/52 or 1/26

Box & Whisker + Graphing Two-Variable Inequalities

100

What are the five numbers in a box-and-whisker plot?

Min, Q1, Median, Q3, Max

200

What does the box represent?

Middle 50% (IQR)

300

Graph:
y>2x+1
What type of line?

Dashed

400

Graph:
y≤−x+3
Shade above or below?

Below (solid line)

500

If Q1 = 10 and Q3 = 22, what is the IQR?

12

BonusFinal Jeopardy

100

Solve:
∣x−4∣≥3

x ≤ 1 OR x ≥ 7