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Transcript

Standard Form

Standard Form

Ax + By = C

This is given on the formula chart

Example Problem:

Ax + By = C

2x + 5y = 10

2x + 5y = 10

Isolate y.

In other words, get the variable y all by itself

2x + 5y = 10

Step 1

Subtract 2x from both sides

2x + 5y = 10

-2x -2x Step 1 Subtract 2x from both sides

5y = -2x + 10

2x + 5y = 10

-2x -2x Step 1 Subtract 2x from both sides

5y = -2x + 10

Next Step: Divide both sides by 5

2x + 5y = 10

-2x -2x Step 1 Subtract 2x from both sides

5y = -2x + 10

5 5 5 Step 2 Divide both sides by 5

y = -2/5x + 2

y = -2/5x + 2

y-intercept is 2 with a slope of -2/5 (Down 2, right 5)

Slope - intercept form y = -2/5x + 2

Standard Form: 2x + 5y = 10

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