Question

Line QR contains (2, 8) and (3, 10) Line ST contains points (0, 6) and (-2, 2). Lines QR and ST are (4 points)
Select one:
a. parallel because the product of the slopes is -1
b. perpendicular because the product of the slopes is -1
c. parallel because the slopes are the same
d. perpendicular because the slopes are the same

Answer 1

Parallel: two lines have the same slope
Perpendicular: two lines' slope multiply to -1

Slope: \(\Large m=\frac{y_2-y_1}{x_2-x_1}\)

Answer 2

Find the slope of the two lines first

Answer 3

so i just plug in the numbers

Answer 4

exactly

Answer 5

ok

Answer 6

ok hold on im doing it right now

Answer 7

qr=2/1

Answer 8

ST=-4/-2

Answer 9

simplify both fractions

Answer 10

what do you mean line add them together subtract them

Answer 11

find the value of each fraction

Answer 12

so how do i do that

Answer 13

go back to grade 4 or so and learn that xDDDD

Answer 14

simplify fractions means
2/6 is the same value as 1/3 (but 1/3 is simpler)
10/2 is the same value as 5 (but 5 is simpler)

sometimes it means recognizing that a fraction is the same thing as top divided by bottom
sometimes it means dividing the top and bottom by the same number (2/6 becomes 1/3 by dividing top and bottom by 2)

Answer 15

your 2/1 and your -4/-2 are not written in their simplified form

Answer 16

how do i simplify i forgot

Answer 17

-4/-2 is the same thing as -4 divided by -2

Answer 18

ohh i remember now

Answer 19

glad that you remember now, thanks @Phaen for explaining :)

Answer 20

so its 2 and 2

Answer 21

right

Answer 22

exactly

Answer 23

now wat do i do

Answer 24

you read kenny's first response again :)

Answer 25

so its c

Answer 26

yes, and please give @Phaen a medal :D