Answer:
To put the equation 3x + 9y = 63 into slope-intercept form (y = mx + b), where "m" is the slope and "b" is the y-intercept, follow these steps:
First, subtract 3x from both sides of the equation:
3x + 9y - 3x = 63 - 3x
This simplifies to:
9y = -3x + 63
Now, divide both sides of the equation by 9 to isolate y:
(9y) / 9 = (-3x + 63) / 9
This simplifies to:
y = (-1/3)x + 7
So, the equation 3x + 9y = 63 in slope-intercept form is:
y = (-1/3)x + 7
Explanation: