SOLUTION: Find the slope m and the y-intercept of the graph of the equation. Then graph it. x + 5y = 15 slope m = y-intercept (x, y) = ( , )

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Find the slope m and the y-intercept of the graph of the equation. Then graph it. x + 5y = 15 slope m = y-intercept (x, y) = ( , )       Log On


   

Question 926177: Find the slope m and the y-intercept of the graph of the equation. Then graph it.
x + 5y = 15
slope m =
y-intercept (x, y) = ( , )
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
You should know how to read the slope directly from the equation and find intercept using the other variable assigned as 0. You can also solve the equation for y, and then directly read the slope and y-intercept.

Ax%2BBy=C
By=-Ax%2BC
y=-%28A%2FB%29x%2BC%2FB, corresponding to the slope-intercept form, y=mx+b.
Slope is m;
y-intercept is b.

YOUR example: x%2B5y=15
5y=-x%2B15
y=-x%2F5%2B3, OR if you prefer, y=-%281%2F5%29x%2B3.

graph%28300%2C300%2C-6%2C6%2C-6%2C6%2C-x%2F5%2B3%29