Rebecca R. answered • 08/09/18

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Experienced Elementary School Math, Algebra 1, and Geometry Tutor

Hi, Tina!

Okay, if the equation is parallel to y = 2x+3, then it has the same slope

y = mx + b is the slope-intercept formula for a line. Therefore, the slope, m is 2.

So now you know the slope, substitute it into your new equation:

y = 2x + b

Now, insert the point (5,7) for (x,y)

7 = 2(5) + b

7 = 10 + b

b = -3

Therefore the equation you are looking for is:

y = 2x - 3