Graph the direct variation y=−1.5x. using the graph, find: the value of x when y=−3; 4.5; 6 when y = −3, x = ? when y = 4.5, x = ? when y = 6, x = ?

Y=-3

-3=-1.5x
you substitiue y value, then you divide both sides by -1.5 and you get 2 for x.
(2,-3)

y=4.5
4.5=-1.5x
you substitute y value, then again you divide both sides by -1.5 and you get 3.
(3,4.5)

y=6
6=-1.5x
same thing for this last one. then once again divide by -1.5 and you get -4.
(-4,6)

Igot the answer of 15.8 years.