Question

For which equation does the point (20,60) lie on the graph ? Explain
i. C=15+2.50n ii. C=50+1.75n iii. C=30+1.50n

Answer 1

Please help

Answer 2

i assume its in the form (n,C)

Answer 3

What ?

Answer 4

iii is my first guess; but would have to dbl check it

Answer 5

amistre64 check out the method i gav for finding the quadratic equation given its vertex...please :)

Answer 6

60 = 30 + 1.5(20)

60 = 30 + 30

60 = 60

Answer 7

Okay , I'm going to check ...

Answer 8

60,20 only fits no. iii

Answer 9

the (n,C) refers to the way they expect you to fill in the question; the independant variable tends to be first; then the dependant

Answer 10

(if I plug in 'n', do I get 'C')
( 20 , 60 )

Answer 11

Yes, I know thiss .

Answer 12

Thanks