# math

posted by .

how do you go about finding y-intercept and the slope for the equation -2y+3y=-21

• math -

Rewrite your equation (after correcting it) into y = mx + b form.

m will be the slope and b will be the y-intercept, where the straight line crosses the y axis.

• math -

-2y+3y = -21
y(-2+3)= -21
y(1)= -21
y = -21 + (-1)
y = -21 - 1
y = -22

• math -

miyako's answer is incorrect. If both terms on the left contain a y, then y = -21. You would have a horizontal line with zero slope.

I still believe one of your x's should be a y

• math -

move the x1,y1,x2, and y2 sliders back and forth.which sliders affect the rise?

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