Question

Write the equation of the line that is parallel to the line y = -3x + 12 and passes through the point (-1, 6).
A.) Y = 1over3x + 7
B.) Y = -3x + 3
C.) Y = 1over3x + 3
D.) Y = -3x + 7

Answer 1

what is the slope of the given line...?

Answer 2

No Clue . Thats the entire question .

Answer 3

well its in the information. The slope intercept form of a line is \[y = mx + b\] m is the slope and b is the y intercept.

so looking at th line you have been given, what is the slope..?

Answer 4

-3

Answer 5

great... so you can use that information

the line is

y = -3x + b

so you can eliminate 2 choices

Answer 6

next use the point (-1, 6) and y = -3x + b

this will help you find b, so substitute x = -1 and y = 6 to find b

\[6 = - 3 \times -1 + b\]

what's the value of b..?

Answer 7

3...?

Answer 8

great the line you need is

y = -3x + 3

is that in your list...?

Answer 9

yes (: thanks you

Answer 10

and ! @campbell_st i have other questions similar to this one but i can do them now (: but some other ones say "perpendicular" instead of "parallel" .. is there sumthing that i must do different ?

Answer 11

well if you post them as new questions there a lots of people who can help...

but remember

y = mx + b m = slope.... substitute the point to find b and the solution.

Answer 12

alrighty, thanks