Homework Explained - Math Practice 101

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Chapter 5: Writing Linear Equations; Lesson 1: Writing Linear Equations from Situations and Graphs

The graph shows the activity in a savings account.

• Question 12

What was the amount of the initial deposit that started this savings account?

•  \$
• Question 13

Find the slope and y-intercept of the graphed line.

•  Slope: y-intercept
• Question 14

Write an equation in slope-intercept form for the activity in this savings account.

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• Question 15

Explain the meaning of the slope in this graph.

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H.O.T.

Focus on Higher Order Thinking

• Question 16

Communicate Mathematical Ideas

Explain how you decide which part of a problem will be represented by the variable x, and which part will be represented by the variable y in a graph of the situation.

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• Question 17

Represent Real-World Problems

Describe what would be true about the rate of change in a situation that could not be represented by a graphed line and an equation in the form $$\text{y} = \text{mx + b}$$.

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• Question 18

Draw Conclusions

Must m, in the equation $$\text{y} = \text{mx + b}$$, always be a positive number? Explain.

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