Find the slope-intercept equation of the line passing through the points (–3, –5) and
(6, –2).
Remember how to find the slope between two points ? ( y1-y2) /(x1-x2) = m = slope = 1/3
y = mx + b
y = 1/3 x + b sub in one of the points to calculate 'b'
-2 = 1/3 (6) + b then b = -4
y = 1/3 x -4
The slope intercept form is: \(y=mx+b\)
First you need to find the slope (m). \(m=\frac{y_2−y_1}{x_2-x_1}.\)
\(m=\frac{−2−\left(−5\right)}{6−\left(−3\right)}\)
\(m=\frac13\)
Next, you find the y-intercept, or b. You can plug in any of the 2 points like this: \(y=\frac13x+b\)
\(-2=\frac13\cdot6+b\)
\(2+b=-2\)
\(b=-4\)
So our final answer is \(y=\frac13x-4\)
(I just wanted to make ElectricPavlov's solution more clear)