Question

Last two on my study guide that I can't figure out:
1.) Write the equation of the line that satisfies the given conditions. Express the final equation in standard form. Contains the point (-5, 7) and is parallel to the line x − 8y = 6
2.) Write the equation of the line that satisfies the given conditions. Express the final equation in standard form.
Contains the point (-4, 2) and is perpendicular to the line 5x − y = 4

Answer 1

Question 1
\[y=\frac{ x }{ 8 }-\frac{ 3 }{ 4 }\]
\[m=\frac{ 1 }{ 8 }\]
\[m=\frac{\Delta y }{\Delta x }\]
\[\frac{ 1 }{ 8 }=\frac{ y-7 }{ x--5 }\]
\[\frac{ 1 }{ 8 }=\frac{ y-7 }{x+5 }\]
cross multiply
\[8(y-7)=x+5\]
\[8y-56=x+5\]
\[y=\frac{ x }{8 }+\frac{ 61 }{ 8 }\]

Answer 2

I submitted that and it said it was wrong. It shows that x-8y=-61 is the answer

Answer 3

@mokeira

Answer 4

hmmm....i dont know

Answer 5

ooh i know...you multiply m by -1