Question

Slopes of parallel and perpendicular lines: Problem type 1

Consider the line .
(a) What is the slope of a line parallel to this line?

(b) What is the slope of a line perpendicular to this line?

Answer 1

the line is 8x-4y=7

Answer 2

when a line is parallel to a line then Slop1=Slop2
When A line is Perpendicular to a line then slop1*slop2=-1

Answer 3

Do u know what is the slope of 8x-4y=7 ?

Answer 4

y=2x-7/4?

Answer 5

Thats the 'slope-intercept' formula y=mx+b where m is the slope according to that
The slope here is 2 , Agree ?

Answer 6

ya

Answer 7

OK ,Point (A)
when a line is parallel to a line then Slope1=Slope2
U have Slope 1 ,can u get slope 2 ?

Answer 8

?

Answer 9

a=2 and b=-1/2

Answer 10

Correct! :)
Good Job .