Question

how do you write the equation in slope-intercept form of the line that has a slope of 3 and contains the point (4, 9). HELP ME PLEASE!!!!!!!

Answer 1

\[y-9=3(x-4)\] is the first step

Answer 2

i dont understand how you got it...with the points (4,9)

Answer 3

"point slope" formula
\[y-y_1=m(x-x_1)\] a direct substitution with
\[x_1=4,y_1=9,m=3\]

Answer 4

still dont understand

Answer 5

maybe this will help
http://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/equation-of-a-line/v/linear-equations-in-point-slope-form

Answer 6

slope-intercept form is y=mx+b where m is the slope and b is the y-intercept