Question

find the constant of variation, and write and equation for the direct variation. y=15 when x=5

Answer 1

y=kx
15=k5
k=3
y=3x

Answer 2

explain in word?

Answer 3

direct variation means that as x changes y changesby a specific value. a k value. so thegeneral equation for direct variation between y and x is:
y=kx
now we just input the values for y & x that u provided so we can get k
15=k5
3=k
substitue the value for k and
y=3x
so y varies directly with x by a value of 3

Answer 4

so do we always use this equation? and then what is the constant of variation

Answer 5

k is our constant of variation so 3 and it its varying with x yes