Question

A line with a slope of -10 passes through the point (1,-10) what is it equation in slope intercept form?

Answer 1

y=-10x

Explanation:

m=-10

For (1,-10) a=1 AND b=-10

(use the formula y-b=m(x-a) to find the equation of the line)

y-b=m(x-a)

(sub the values of m (the slope) and a&b (from the point)

y - (-10) = (-10) × ( x - 1 )

(simplify)

y+10=-10(x-1)

(expand the bracket)

y+10=-10x+10

(subtract 10 for both sides)

y=-10x+10-10

(simplify)

y=-10x