Question

Write an equation of the direct variation that includes the given point. (1, 4)

Answer 1

What is the definition of direct variation?

Answer 2

@TylerD @adrynicoleb

Answer 3

Direct variation means that x and y are directly proportional to each other, hence, if you double x, y is doubled as well. Direct variation equations will have the form \[y = ax\]

Answer 4

y=14?

Answer 5

so y = 4x?

Answer 6

possibly

Answer 7

what about (-6, -9)?

Answer 8

y = k x where k is a constant will not change

using (1, 4)
4 = k *1
k = 4
therefore y = 4 *x

Answer 9

what about (-6, -9)?