How do you find the equation in slope - intercept form, of the line passing through: (−2, −7) m = 1 ?
y = x - 5
The equation of a line in slope-intercept form is y = mx + c , where m represents the gradient ( slope) and c , the y-intercept.
here m = 1 , hence partial equation is y = x + c
To find c , use the point (-2,-7) and substitute x = -2 , y = -7 into the equation.
thus: -7 = -2 + c → c = -7 + 2 = -5
Equation of line is therefore : y = x - 5