If y is 4.5 when x is 3, and y varies directly with x, find y when x is 9. 1.5 7.5 10.5 13.5

ANSWER

13.5

EXPLANATION

It was given that, y varies directly as x.

Therefore, the variation equation is of the form:

If y is 4.5 when x is 3, then we can substitute to find the constant of variation.

Divide both sides by 3;

Hence the equation becomes:

When x=9,

answerthe vertex form

step-by-step explanation:

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two