Question

for the data in each table, tell whether y varies directly with x. if it does write an equation for the direct variation
x: -3 -1 2 5
y: 7.5 2.5 2 -12.5

Answer 1

7.5 / -3 = -2.5
2.5 / -1 = -2.5
2 / 2 = 1
-12.5 / 5 = -2.5

are yoy sure that x = 2 for y = 2 is correct?

Answer 2

thats what i was wondering

Answer 3

if for instance for x = 2 y = -5 then the relationship would be

y = -2.5 x

Answer 4

oh thanks guys its x=2 y=-5

Answer 5

yw