Question

if w=6 when z=2 find w when z=-3

Answer 1

6 : 2
x : -3
ratios. cross multiply

Answer 2

since 6 = 3(2) we can see that the equation to find w is w=3z. using this information we can plug in -3 and see that:

w=3(-3)
w=-9

Answer 3

So the answer is +9

Answer 4

why is it +9?

Answer 5

It is the answer on that was listed on the computer from the teacher. if we set it up with basic ratio and multiply -6*2 and x*3 = 2x/2=18/2 x=9

Answer 6

when you cross multiply, you get 6*-3/2 = -18/2 = -9, not +9

Answer 7

Hmm, interesting. The teacher only had 9 for the answer.

Answer 8

your teacher is wrong

Answer 9

logic follows logic, not what your teacher says

Answer 10

as long as you follow the correct logic, you will always end up with the correct answer.