Question

Find the constant of variation for the relation and use it to write an equation for the statement. Then solve the equation.

a
C.
If y varies directly as x, and y = 5 when x = 8, find y when x = 4.
5
y=-*; y(4)
2
y ==*: 7(4) = 32
b. 25
)
d. y = 5x; y(4)=20
8
: =
y-:
를
2
Please select the best answer from the choices provided
Ο Α
B
0

Answer 1

A) 5/2

Explanation:

Answer 2

C

Explanation:

Y = K*X

5 = 8K

K= 8/5

So, y = 8/5 * X

Y= 8/5 * 4

Y = 32/5