Review Inequalities Quizizz

Presentation

•

Mathematics

•

9th - 12th Grade

•

Practice Problem

•

Hard

•

CCSS

6.NS.B.3, 6.EE.B.8, HSA.REI.D.12

Standards-aligned

Vanessa Wright-Greene

FREE Resource

9 Slides • 19 Questions

Solving Inequalities is like Solving Equations

Distribute First
Get Like Terms together
Do Opposite Operations
BUT... If you divide or multiply by a NEGATIVE NUMBER you must flip the inequalitiy sign

Multiple Choice

Does the sign need to flip when solving?
-2x ≥ 22

YES

Multiple Choice

Solve
-5m < 10

m < -2

m > -2

m < -50

m > -50

Multiple Choice

Does the sign need to flip when solving?

m - 5 > 8

YES

Multiple Choice

Solve for t.

6t + 4 ≤ -2

t ≤ -1

t ≤ 1

t=1

1=t

Graphing Inequalities

Multiple Choice

When graphing an inequality, you use an open dot when you use which symbol?

<, >

≤, ≥

≤, <

≥, >

Multiple Choice

When you graph an inequality, you used a closed dot when you use which symbols?

≤, ≥

<, >

≤, <

≥, >

Multiple Choice

"At most" and "No more than" are both clue words for...

≤

≥

Multiple Choice

Match the graph with its inequality.

b > –2

b < –2

b ≥ –2

b ≤ –2

Multiple Choice

Match the graph with its inequality.

c > 9

c < 9

c ≥ 9

c ≤ 9

Multiple Choice

Match the graph with its inequality.

a > 11

a < 11

a ≥ 11

a ≤ 11

Multiple Choice

Which sentence represents m > 41?

Mary’s points, m, totaled more than 41

Calvin ran no less than 41 miles, m

The temperature, m, was less than 41°F

The magazines’ cost, m, was not more than $41.

Graphing Linear Inequalities

Multiple Choice

How would you graph the following linear inequality?

y ≥ 4

Dashed line, shade above

Dashed line, shade below

Solid line, shade above

Solid line, shade below

Multiple Choice

How would you graph the following linear inequality?

$y\ ≤\ \frac{4}{3}x\ -\ 4$

Dashed line, shade above

Dashed line, shade below

Solid line, shade above

Solid line, shade below

Graphing Linear Inequalities is the same as graphing lines.

With the addition of shading above or below. We also have check if it is dotted or solid.

Multiple Choice

When graphing an inequality, you use a dotted line when you use which symbol?

<, >

≤, ≥

Multiple Choice

When you graph an inequality, you use a solid line when you use which symbols?

≤, ≥

<, >

What are the solutions to a linear equality?

Any point (x,y) that satisfies the inequality (makes it true)
Any point (x,y) that is in the SHADED region when the inequality is graphed.
Any point (x,y) that is ON THE LINE when the line is a SOLID LINE.
Any points ON a dotted line are NOT solutions.

Multiple Select

Which point(s) are solutions to the inequality shown on the graph? Select all that apply.

(0,5)

(-2,2)

(-3,4)

(-1,1)

(-4,0)

Multiple Select

Which point(s) are solutions to the inequality shown on the graph? Select all that apply.

(-4,3)

(1,3)

(4,-5)

(1,-5)

(-3,-5)

Multiple Choice

Are the points on the boundary line part of the solution set or not?

Yes, they are part of the solution set

No, they are NOT part of the solution set

Multiple Choice

How can I tell if an inequality will have a solid line?

It has an equal sign.

The symbol is greater than.

The symbol has "or equal to."

You just guess.

Solving Inequalities is like Solving Equations

Distribute First
Get Like Terms together
Do Opposite Operations
BUT... If you divide or multiply by a NEGATIVE NUMBER you must flip the inequalitiy sign

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