Question

]Identify the correct x intercept and y intercept of the equation x + 7y = -21.

x intercept = (3, 0); y intercept = (0, 21)

x intercept = (-3, 0); y intercept = (0, -21)

x intercept = (21, 0); y intercept = (0, 3)

x intercept = (-21, 0); y intercept = (0, -3)

Answer 1

for y int, make x=0 and solve
for x int make y=0 and solve

Answer 2

given the form:

ax+by=c

yint = c/b

xint = c/a

Answer 3

and since the zeros are in the right spots, you just gotta determine the number

Answer 4

i say the second one is the answer...
click good asnwer for amistre and me and mark please!!

Answer 5

really? since -21/1 = -21 id go number 4

Answer 6

have you solved for your x int yes amistre?

Answer 7

x + 7y = -21

x = -21/1
y = -21/7

Answer 8

cuz the way u sloved...i understand what u did u made a big mistake...

Answer 9

when x=0 ... y = -3 still

Answer 10

t o what i think

Answer 11

or let me think tht over..

Answer 12

yint = (0,-3) still #4

Answer 13

when y=0 x=-21, still

xint = (-21,0) still

Answer 14

ah yes no my mistake i figured out what was wrong..yes i was wrong..i put a dif variable in..whoops my mistake king amistre u r totally correct

Answer 15

.... im prone to error, so its good to dbl chk :)

Answer 16

more like tripple!

Answer 17

this thing says I good answered you, hmm; musta been while I was typing lol

Answer 18

oh well, cant give it twice ;)

Answer 19

it the 2 one

Answer 20

hahaha,

Answer 21

not unless you typoed the question

Answer 22

@louis i just proved that number 2 was wrong with amistre..its number 4

Answer 23

oh well, theyll be back ...

Answer 24

hmm

Answer 25

hehy amistre do u have any experience with trignometry?

Answer 26

yes choice 4 im sorry

Answer 27

i now trig, occasionally

Answer 28

i put it on reversed lol

Answer 29

@amistre can you teach me some basic trig?