Question

A line that includes the point (2, 9) has a slope of 8. What is its equation in slope-intercept

form?

Answer 1

y-8x+7=0

Explanation:

slope(m)=8

using slope intercept form of equation of staright line we get

y=mx+b

y=8*x+b

y-8x=b ................ eq(i)

since the line include the point (2,9) it satisfies the euation,

here x=2 and y=9

equation: y-8x=b

9-8*2=b

9-16=-b

-7=b

substituting the value of b in eq(i) we get

y-8x=-7

y-8x+7=0 is a required equation of the line.