Answer:
y = -3x + 20
Step-by-step explanation:
All you need to do is plug the (x,y) coordinates of (5,5) into the slope intercept formula to find the value of b to make the equations. Also, M is the value of the slope which is given to you as the value of -3.
1. The first 5 in the coordinate is the value Y and the second 5 in the coordinate is the value of Y. Substitute these numbers into the formula and solve.
[tex]5 = -3(5) +b[/tex] (multiply -3 * 5)
[tex]5 = -15 + b[/tex] (add 15 to both sides)
[tex]20 = b[/tex] (this is the value of b)
2. Now just combine everything to form the equation
[tex]y = -3x + 20[/tex]