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# Point slope form slope = 5 passing through (-3,4)

I don't know how to do this at all

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Kevin C. | Successful Math Tutor -- Recently retired high school math teacherSuccessful Math Tutor -- Recently retire...
5.0 5.0 (545 lesson ratings) (545)
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... or m = 5, y = 4,  x = -3

y = mx + b

4 = 5(-3) + b

4 = -15 + b

Add 15 to both sides, giving b = 19;   Since y = mx + b: y = 5x + 19
Tynisa W. | Tutoring Math (and more) from Basic Math to CalculusTutoring Math (and more) from Basic Math...
4.7 4.7 (3 lesson ratings) (3)
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point slope form is: (y-y1) = m(x-x1) where m is slope and the point they give you is (x1, y1)

1. First plug in
y - 4 = 5(x - (-3))

2. Subtracting a negative makes a positive so fix equation

y - 4 = 5(x + 3)

3. If you need to put it in slope intercept form:

y - 4 = 5(x + 3)  (then distribute the 5 to x + 3)
y - 4 = 5x + 15
y - 4 + 4 = 5x + 15 + 4 (add 4 to both sides to get y by itself)
y = 5x + 19
William A. | Helping people and giving back what was given to me.Helping people and giving back what was ...
4.8 4.8 (4 lesson ratings) (4)
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Graph the line with slope 3  passing through the point (-5, 4)