The correct answer is 6(2 - 3x) = 12 - 18x
X equals the number of aerobics classes.
We create an equation to solve for x.
Member Cost = Nonmember Cost
8 + 2x = 0 + 4x
Solve for x:
8 + 2x = 4x (subtract 2 from both sides)
8 = 4x - 2x (combine like terms)
8 = 2x
4 = x
For 4 aerobics classes, the cost of members and nonmembers will be the same.
The equation for slope intercept is y=mx+b
M represents the slope of the equation while b represents the y-intercept.
Slope formula is y2-y1/x2-x1
The slope would be 2/3
Plug in the slope and the equation would be y=2/3x+b
Now you need to find the intercept, choose on of the coordinates and plug it into the equation. I chose (6,-1)
The final equation would be y=2/3x-5