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Mathematics 15 Online
OpenStudy (anonymous):

Complete the equation of the linear function. y =?? x +??

OpenStudy (igreen):

Find the slope and y-intercept y-intercept is where the line crosses on the y-axis..where is that?

OpenStudy (anonymous):

no 1

OpenStudy (igreen):

Correct. y = mx + b Where 'b' is the y-intercept. So far we have: y = ?? x + 1

OpenStudy (igreen):

For the slope take any two points on the line and plug them into the slope formula. Let's take (-1, 3) and (1, -1). \(m = \dfrac{y_2-y_1}{x_2-x_1}\) \(m = \dfrac{-1-3}{1+1}\) Simplify, tell me what you get.

OpenStudy (anonymous):

-4/2

OpenStudy (igreen):

Yes, now divide that

OpenStudy (anonymous):

-2

OpenStudy (igreen):

Correct, so the slope is -2. SO we have: y = -2x + 1

OpenStudy (igreen):

*So

OpenStudy (anonymous):

thank you... sorry my internet is slow today XP

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