Question

Variable y varies directly with x2, and y = 32 when x = 4.
Which graph represents the quadratic variation?
A. https://static.k12.com/calms_media/media/1540000_1540500/1540310/1/e704306724d0e3058f5f975d02ad64262eb5d886/MS_ALG_S2_01_12_quiz_Q5a_question.gif
B. https://static.k12.com/calms_media/media/1540000_1540500/1540311/1/d3c9c95d917ce7280f5dbce58d52cc1b289e4903/MS_ALG_S2_01_12_quiz_Q5b_question.gif
C. https://static.k12.com/calms_media/media/1540000_1540500/1540312/1/520c64d5cf628a3b4b22b816792234a7675902b7/MS_ALG_S2_01_12_quiz_Q5c_question.gif
D. https://static.k12.com/calms_med

Answer 1

D. https://static.k12.com/calms_media/media/1540000_1540500/1540313/1/69f31c1a860fc344187f2804ec831319d4f09b69/MS_ALG_S2_01_12_quiz_Q5d_question.gif

Answer 2

i in k12 to

Answer 3

u not i

Answer 4

can you help?

Answer 5

mabye

Answer 6

@123AB456C

Answer 7

hey!

Answer 8

I cannot see the graph properly, so you have to work with me.

your question says y varies directly to x2, so you'll have y=ax2, where a is the constant of variation.

Using the point you were given, (4 , 32), we can solve for the value of 'a'.

y=ax232=a(4)232=16aa=2

therefor you're equation will be : y=2x2

Now try plugging in different values for x to solve for y, and match the points that you have gathered on one of the graphs in the choices.

Answer 9

r u there

Answer 10

yes, trying to figure this out, the x is supposed to be x^2

Answer 11

https://static.k12.com/calms_media/media/1540000_1540500/1540310/1/e704306724d0e3058f5f975d02ad64262eb5d886/MS_ALG_S2_01_12_quiz_Q5a_question.gif

Answer 12

is this one the answer?

Answer 13

yes

Answer 14

thankyou

Answer 15

no prob anytime

Answer 16

an medal plz