What are the values of a, b, and c for the equation 5x- 3y= -30

Question

I understand that a and b cannot be negative, but in the problem given they are. Could someone help explain how to find the values with them being positive. 5x-3y=-30

Answer 1

5x- 3y= -30

a = 5

b = -3

c= -30

This equation is in standard form

a must be positive but b and c can be negative

a and b cannot both be 0

Answer 2

Hi Emily D.,

The general equation for a line is ax + by = c.

For the general equation you have been given:

ax + by = c

5x - 3y = -30

5x + -3y = -30, (minus a 3y is the same as plus a -3y)

ax = 5x, (x's cancel)

a = 5

by = -3y, (y's cancel)

b = -3

c = -30

So, a = 5, b = -3, and c = -30

I hope this helps, Joe.