Question

10. If y is directly proportional to x and y = 20 when
x = 5,
(1) find an equation connecting x and y,
f
instr.​

Answer 1

Answer:

y=4x

Step-by-step explanation:

If we want to show y is directly proportional to x.

Then, y=kx

Since,k is a constant.

By putting x=5 and y=20 in y=kx

then, 20=k5

Now, solving the above equation, we get k=4.

so, the equation connecting x and y is y=4x.