Math Help Please!!
For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.

X | Y
2 | -6.6
3 | -9.9
4 | -13.2
5 | -16.5

A) yes; y = x – 3.3
B) yes; y = -3.3x
C) yes; y = -1/3x
D) no

Question

Math Help Please!!
For the data in the table, tell whether y varies directly with x. If it does, write an equation for the direct variation.

X | Y
2 | -6.6
3 | -9.9
4 | -13.2
5 | -16.5

A) yes; y = x – 3.3
B) yes; y = -3.3x
C) yes; y = -1/3x
D) no

anonymous · Answer

I think the correct answer is A @acxbox22

acxbox22 · Answer

y=kx
-6.6=k(3)
k=-3.3
what is the direct variation equation if m or the slope is -3.3?

acxbox22 · Answer

-9.9 isnt an equation...lol
we can sub -3.3 for k in the equation y=kx
so it becomes y=-3.3x <<<that is your answer

anonymous · Answer

Thank you.