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Find an equation of the line passing through the point (4,3) with slope m=3

2 Answers

6 votes

Use the formula y=mx+b in order to solve for b. Then, plug in known values.

y=3x−9

User Webofmars
by
8.1k points
6 votes

Answer:

y=3x-9

Explanation:

Enough information is given to write the line's equation in point slope form:


y-y_1=m(x-x_1)\\'m' - slope\\(x_1,y_1) - coordinate

The slope is three and the point is (4,3).

Replace the equation with the given information:

m = 3

x1 = 4

y1 = 3


y-3=3(x-4)

We can also make the equation into a slope intercept equation:


y-3=3(x-4)\\\rightarrow y-3=3x-12\\\rightarrow y-3+3=3x-12+3\\\boxed {y=3x-9}

So, the equation would be
y=3x-9.

Brainilest Appreciated.

User Dotnetster
by
8.1k points

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