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How to write the equation of the line with m = - 3/4 that goes through (2, –5) in

Slope–Intercept Form.

User Aeonitis
by
8.5k points

1 Answer

3 votes

Answer: y=-3/4x-3.5

Explanation:

First, set up the equation based on the information we already know. The slope-intercept form is y=mx+b (m being the slop and b is the y-intercept)

We already know the slope, so we can substitute it.

y=-3/4x+b

Now, the only variable we need to find is b (the y-intercept)

To do this we can substitute the point that was given, (2,-5)

Substitute -5 in for y and 2 in for x.

Then you get the equation -5=-3/4(2)+b

Multiply -3/4 and 2 and you get -5=-3/2+b

Add -3/2 from both sides to isolate b

You then get b=-3.5

Substitute b back in the original equation

Your final answer is y=-3/4x-3.5

User Mark Spangler
by
7.9k points

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