Question

it says graph 7x - 4y = 28, using the intercept method

Answer 1

i'm not sure how to break this down

Answer 2

so you have to find the x-intercept and the y-intercept
to find x-intercept replace y=0
to find y-intercept replace x=0
can you do that by yourself??

Answer 3

so 7(0)=0 and 4(0)=0?

Answer 4

this stuff is so confusing to me

Answer 5

for y=0
7x = 28
x=4
then x-intercept is (4,0)
for x=0
-4y=28
y=-7
then y-intercept is (0,-7)
now plot these two points and join them

Answer 6

do you get it now??

Answer 7

this is going to take some time

Answer 8

why?? do you know how to plot the two points that i gave you

Answer 9

i'm trying to figure it out

Answer 10

ok i think i got that one right

Answer 11

Ok, now I have a y = 4/5x + 4. How would I graph that one

Answer 12

if you replace x=0 in the equation then y=??
try it and tell me what you get

Answer 13

so 5x would turn in to 0?

Answer 14

mm wait.. is it
4 4
------- or -------- x
5x 5

Answer 15

y = 4/5x + 4

Answer 16

you mean 4
------
5x +4

Answer 17

soo yes 5x=0
what is y then?

Answer 18

0?

Answer 19

y= 4/(0+4) = 4/4 = 1

Answer 20

i wouldnt even know how to graph that

Answer 21

are you sure that the equation you have is of the form
4
------
5x +4

Answer 22

y = 4/5x + 4

Answer 23

Vince, you find the x and y intercepts because they are two points that you can plot on an xy plane. Since between any two points is a straight line, you can simply draw a line through those points and label it y = 4x/5 + 4

Answer 24

can you write it using Draw so that it become clear