SOLUTION: Please help with this algebraic conumdrum as I'm having difficulty with slope intercept. Thank you. The line through (-1,-2) with slope 3/7. Write the equation for this line.

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Question 337665: Please help with this algebraic conumdrum as I'm having difficulty with slope intercept. Thank you.
The line through (-1,-2) with slope 3/7. Write the equation for this line. Give the answer in slope-intercept form.
Found 2 solutions by Fombitz, stanbon:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Conundrum?
There is a formula, you know.
It was worked out hundreds of years ago, just use it.
Use the point-slope form of a line and convert it to slope-intercept form,
y-yp=m%28x-xp%29
y-%28-2%29%29=%283%2F7%29%28x-%28-1%29%29
y%2B2=%283%2F7%29%28x%2B1%29
Now convert it to slope-intercept form to complete the problem.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The line through (-1,-2) with slope 3/7. Write the equation for this line. Give the answer in slope-intercept form.
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Slope-Intercept Form: y = mx + b
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You know y = -2 when x = -1.
And you know m = 3/7
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Substitute and solve for "b":
-2 = (3/7)(-1) + b
b = -2+(3/7)
b = (-14/7)+(2/7)
b = -12/7
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Equation:
y = (3/7)x -(12/7)
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Cheers,
Stan H.