Question

Math Help Please!!

Write the equation of the direct variation that includes the point (8, 18).

Answer 1

"direct variation" means we'll have y = k*x for some fixed number k

Answer 2

y = k*x

18 = k*8

k = ??

Answer 3

Would K represent 9 @jim_thompson5910

Answer 4

k = 9 is false

Answer 5

I'm not sure what K could be @jim_thompson5910

Answer 6

you divide both sides by 8 to isolate k

Answer 7

18 divided by 8 is 2.25.

Answer 8

leave it as a fraction

Answer 9

reduce as much as possible

Answer 10

What would be the fraction that I have to reduce?? @jim_thompson5910

Answer 11

reduce 18/8 to get ??

Answer 12

Y = 9/4

Answer 13

yep, your equation is \[\Large y = \frac{9}{4}x\]

Answer 14

Thank you so much! (:

Answer 15

well you had x on there, but deleted it for some reason

Answer 16

you're welcome