Find an equation of the line. Write the equation using function notation.
-$( - 9 , - 44 ) , ( 1 , - 4 )$
A) $y = 4 x - 8$
B) $y = \frac { 1 } { 4 } x - \frac { 167 } { 4 }$
C) $f ( x ) = 4 x - 8$
D) $f ( x ) = - 4 x - 80$

Question

Quizplus · Accepted Answer

The slope of the line is $\frac { - 44 - ( - 4 ) } { - 9 - 1 } = \frac { - 40 } { - 10 } = 4$. The y-intercept is -8. So, the equation of the line is $y = 4 x - 8$. In function notation, this is $f ( x ) = 4 x - 8$.

Find an Equation of the Line (−9,−44),(1,−4)( - 9 , - 44 ) , ( 1 , - 4 )(−9,−44),(1,−4)

Find an Equation of the Line $( - 9 , - 44 ) , ( 1 , - 4 )$