Answer:
slope = - 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (0, - 3) ← 2 points on the line
m = = = - 3
Here it is described. Its really easy.
I'm pretty sure that is correct. 3 non collinear points always form a triangle.
slope of line (m) : 3
P1: (-2 , -2)
P2: ( 1, 7)
the slope formula is
m = ( Y2-y1)/(x2-x1)
m = (-2-7)/(1+3)
m=3
Equation of line is y=mx+b
Using P2 ( 1,7)
7 = 3(1) + b
7 = 3+ b
7-3 = b
b = 4
so that, line equation is:
y = 3x +4
