Question

Write the equation of the line that has an x-intercept of -3 and passes through the point (-3, 7).

Answer 1

x intercept means the point (-3,0)
now you have 2 points

find slope
then use the point slope formula to find the equation of the line

Answer 2

IMPORTANT LINE RELATED EQUATIONS TO KNOW AND MEMORIZE

slope formula
m= slope/ gradiant -- same thing
\[m=\frac{y_2-y_1}{x_2-x_1}\]

standard formula
\[Ax+By=C\]

point-slope formula
\[y-y_1=m(x-x_1)\]

slope-intercept formula
b= y-intercept -- in the form of (0,y)

\[y=mx+b\]