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# Slope-Intercept From 3 PowerPoint PPT Presentation

Slope-Intercept From 3. Goal. Given a table of data , find an equation of the line in the y= mx+b form. . Step 1. Write original equation: y= mx+b. Step 2. Find the slope. Pick two points and plug them into . Step 3. Plug the slope in for m into y= mx+b. Step 4.

Slope-Intercept From 3

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## Slope-Intercept From3

### Goal

• Given a table of data, find an equation of the line in the y=mx+b form.

### Step 1

Write original equation: y=mx+b

### Step 2

• Find the slope. Pick two points and plug them into .

### Step 3

• Plug the slope in for m into y=mx+b

### Step 4

• Check to see if x=0 is a point. If so, that y-value is the y intercept. Plug that number in for b.

### Step 5

• Of x=0 is NOT a point, then we must find b. Pick any point from the list and plug it in for x and y. Then solve for b.

• Plug b into final equation.

### Homework

• Back of in-class examples