Finding Slope-Intercept Form from Two Points

First steps to to solving slope intercept from two points?

• Finding the slope from two points

• Finding the y intercept

• Finding out if the slope is negative or positive

• Counting to find the slope

Answer explanation

Remember equations are written as y=mx+b. Create the equation by finding the slope from rise/run and the y-intercept by looking at where it crosses the y-axis. You can also create an equation by making a List & Spreadsheet, Data & Statistics, Menu 4, 6, 1.

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AI.9.2.B

To create an equation when given two points you will need to make a List & Spreadsheet, Data & Statistics, Menu 4,6,1. Don't forget to turn the fractions into decimals by typing the fraction and pressing CTRL Enter.

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AI.9.2.B

Write an equation in slope-intercept form from the points (0, 3) and (-4, -1): (a)  

• y = x + 3

• y =  x - 3

• y = x + 1

• y = 3x + 1

Write an equation in slope-intercept form of the line that passes through the given points: (-4,-7) and (-6,9)

• y = 8x + 39

• y = -8x - 39

• y = -8x - 32

• y = 8x + 32

What is the slope-intercept form of the equation that passes through the points (1, 7) and (0, −9)?

• y = 1/2x − 9

• y = 16x − 9

• y = -1/2x − 9

• y = =16x − 9

What is the slope intercept form?

• y= 3x + 17

• y= 3x - 17

• y= -3x - 17

• y= -3x + 17

Remember equations are written as y=mx+b. Create the equation by finding the slope from rise/run and the y-intercept by looking at where it crosses the y-axis. You can also create an equation by making a List & Spreadsheet, Data & Statistics, Menu 4, 6, 1.

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AI.9.2.C

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AI.9.3.A

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AI.9.3.A