Question

Use the intercept method to graph the equation. 20x − y = −20

Answer 1

when x = 0, what is the value of y?

Answer 2

0

Answer 3

incorrect

Answer 4

20x - y = -20

20*0 - y = -20 ... replace x with 0

0 - y = -20

y = ???

Answer 5

1 or -19

Answer 6

0-y turns into -y

Answer 7

so -y = -20 ----> y = ???

Answer 8

-21

Answer 9

you just change the sign of each side to get -y = -20 ----> y = 20

Answer 10

Okay Jim these are the answers that I got when I worked out the problem -1,0 0,20 -0.5,10 when I graph it it goes wrong

Answer 11

now plug in y = 0 and solve for x

Answer 12

That's when I get -1,0

Answer 13

not correct

Answer 14

So I divide 20 by -20 and get -1 and since I put in 0 for y I am confused

Answer 15

20x - y = -20

20x - 0 = -20

20x = -20

x = -1

oh sry I'm thinking of something way different

Answer 16

so yeah you have the two points (0,20) and (-1,0)

Answer 17

plot the two points, then draw a straight line through them to graph 20x - y = -20

Answer 18

Jim are you still there?

Answer 19

yes

Answer 20

Okay so now they did this 6x+7y=14

Answer 21

you can use the same method to find the x and y intercepts

Answer 22

what do you get?

Answer 23

14/6 ,0 and 0,2

Answer 24

use parenthesis when referring to ordered pairs or points

Answer 25

also, 14/6 reduces to 7/3

Answer 26

so we have these two points: (7/3, 0) and (0,2)

Answer 27

Okay I forgot to reduce and I need to put the ordered pairs in parentheses got it