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A line passes through (8,-4) and has a slope of 3. What is the equation of the line?

Sagot :

Sin270idn

Answer:

3x-y=28

Step-by-step explanation:

Point slope form:

y-y1=m(x-x1) where, (x1,y1) is the point given and m is the slope.

Answer:

y = 3x - 28

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 3, thus

y = 3x + c ← is the partial equation

To find c substitute (8, - 4) into the partial equation

- 4 = 24 + c ⇒ c = - 4 - 24 = - 28

y = 3x - 28 ← equation of line

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