SOLUTION: a line passes through the point (-4,-1) and has a slope of 3. Write an equation for this line.

Question 1086076: a line passes through the point (-4,-1) and has a slope of 3. Write an equation for this line.
Found 4 solutions by rfer, jim_thompson5910, math_helper, MathLover1:
Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
y=3x+11
Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
Point Slope Form:

Replace m with the given slope 3

Plug in which is the x coordinate of the point the line goes through

Plug in the y coordinate of the point the line goes through. Now solve for y.

Subtract 1 from both sides

Answer in slope intercept form. We see that the y intercept is 11, meaning that the point (0,11) is also on the line.

Graph:

Answer by math_helper(2461)   (Show Source): You can put this solution on YOUR website!
Point slope form: y-y1 = m(x-x1)
Where:
m=slope
(x1,y1) = some point on the line
y - (-1) = 3(x - (-4))
y+1 = 3(x+4)
y+1 = 3x+12
<<< slope-intercept form (in my experience, this is the most common form)
Other equivalent forms (just re-arranging the above):
<<< point-slope form
<<< standard form

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

a line passes through the point (,) and has a slope of

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