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Mathematics 11 Online
OpenStudy (anonymous):

The equation of line EF is y = 2x + 1. Write an equation of a line parallel to line EF in slope-intercept form that contains point (0, 2). a. y = -2x - 4 b. y = 2x + 2 c. y = -1/2x - 4 d. y = 1/2x + 2

OpenStudy (anonymous):

@Callisto

OpenStudy (anonymous):

I think its b am I correct

OpenStudy (anonymous):

you have 2 parallel line the slope is same

OpenStudy (anonymous):

\[(y-y_{1})=m(x-x_{1})\]

OpenStudy (anonymous):

you are correct b. y = 2x + 2

OpenStudy (anonymous):

If it's parallel, gradient is the same. So y= (same m)x + c.All you need to do is substitue the x and y in the equation, out of the point (0,2).

OpenStudy (anonymous):

thank you

OpenStudy (anonymous):

B is the answer. I'll attach a pic with solution

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