Question

what r the intercepts of 4x^2+16y^2=64

Answer 1

@lexigolds9 Hi,

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To get x intercepts put y=0 in 4x^2+16y^2=64
To get y intercepts put x=0 in 4x^2+16y^2=64

Answer 2

i dont know how to do that. can you tell me the answer? what r the intercepts?

Answer 3

i cannot tell you the answers .
i will tell you method, u need to get the intercepts on your own,
in that way you will learn to get intercepts, ok ?

Answer 4

ok

Answer 5

lets hear it.

Answer 6

To get x intercepts put y=0 in 4x^2+16y^2=64
what u get ?

Answer 7

4x^2+16^2+64=0

Answer 8

??

Answer 9

and it would be 4x^2+16^2-64=0
but u did not put y=0 there

Answer 10

so urs is right and mine is wrong? what next?

Answer 11

4x^2+16y^2=64
4x^2 = 64
got this ?

Answer 12

yes

Answer 13

so x= ?

Answer 14

8

Answer 15

nopes

Answer 16

2

Answer 17

are these just wild guesses ?

Answer 18

no i am actually just really stupid at math with variables.

Answer 19

4 times 2. squared is 64.

Answer 20

8 times 8.

Answer 21

4 x^2 = 64
x^2 = 64/4
x^2 = 16
x= +4 or x=-4
ok?

Answer 22

ok. it can be -4 or 4?

Answer 23

yup, those are x-intercepts.
similarly find y-intercepts

Answer 24

2

Answer 25

-2

Answer 26

that is correct!

Answer 27

awesome! What next

Answer 28

you got both your intercepts

Answer 29

its asking for intercepts. it says type in an ordered pair. im just confused on which ones. would it be..

Answer 30

(-4,2)

Answer 31

it also says there might be more than one ordered pair

Answer 32

okk....x-intercepts are of the form (x,0)
so it will be
(4,0)(-4,0)<----for x-intercepts

y-intercepts are of the form (0,y)
so it will be
(0,2)(0,-2)<----for y-intercepts
ok ?

Answer 33

so there r four different ordered pairs?

Answer 34

yup., 2 for x-int. and 2 for y-int.

Answer 35

thank you!

Answer 36

welcome ^_^