How do you write the equation in point slope form given (7,0) and m=4?

2 Answers
May 13, 2017

y-0=4(x-7)

Explanation:

"the equation of a line in "color(blue)"point-slope form" is.

color(red)(bar(ul(|color(white)(2/2)color(black)(y-y_1=m(x-x_1))color(white)(2/2)|)))
where m represents the slope and (x_1,y_1)" a point on the line"

"here " m=4" and " (x_1,y_1)=(7,0)

rArry-0=4(x-7)larrcolor(red)" in point-slope form"

"or " y=4x-28larrcolor(red)" in slope-intercept form"

May 13, 2017

y = 4x-28

Explanation:

y=mx+c
m=4
y=0
x=7
Therefore 0=4*7+c
0=28+c
c=-28
Substitute m and c
y=4x-28