Question 528493
m = (y-y<sub>1</sub>)/(x -x<sub>1</sub>)
.
m = (-1-3)/(5-(-3))
m = -4/8 = -1/2
.
y = mx + b
so
y = -1/2(x) + b
.
Use one of the points to find 'b'
.
-1 = -1/2(5) + b
-1 = -5/2 + b
-1 + 5/2 = b
b = -1 + 5/2
b = -2/2 + 5/2
b = 3/2
.
y = -(1/2)x + 3/2.
.
{{{ graph(500,500,-10,10,-10,10,-1/2*x+3/2) }}}