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Linear Equations Word Problems

Linear Equations Word Problems

Assessment

Presentation

Mathematics

7th - 9th Grade

Practice Problem

Hard

CCSS
8.F.B.4, 8.EE.B.5, HSF.LE.A.2

Standards-aligned

Created by

Melanie Collins

Used 97+ times

FREE Resource

3 Slides • 5 Questions

1

Linear Equations Word Problems

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2

Slope-Intercept Form: y=mx + b

  • m is the slope or rate of change

  • b is the y-intercept, which is our starting point

  • Rates can be described with phrases "each, for each, per..."

  • Starting points sometimes use phrases like "initial, flat rate, one-time fee, ..."

3

Multiple Choice

It costs $4 per month to join a dance club plus a $30 startup fee.

In this situation, which number is the "b" value?

1

$4

2

$30

3

$7.50

4

Multiple Choice

It costs $4 per month to join a dance club plus a $30 startup fee.

In this situation, which number is the slope?

1

44

2

3030

3

152\frac{15}{2}

4

304\frac{30}{4}

5

Fill in the Blank

It costs $4 per month to join a dance club plus a $30 startup fee.

Write an equation in slope-intercept form to model the situation.

6

Fill in the Blank

Using the same situation as the previous slides, how much would it cost if you paid for 11 months? (It costs $4 per month plus a $30 startup fee.)

7

Fill in the Blank

An airplane 30,000 fee above the ground begins to descend at a rate of 2,000 feet per minute.

In this situation, which number is the slope?

8

The plane is descending!

  • Descending means the height of the plane is going down.

  • The altitude of the plane is decreasing 2,000 feet per minute.

  • This would represent a slope of -2,000!

Linear Equations Word Problems

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