The vertex of this parabola is at (2,-4). Which of the following could be its
equation?
O
A. x= 2(y + 4)2 + 2
O
B. x=2(y - 4)2 +
C. y= 2(x - 2)2-4
O
D. y= 2(x-2)?

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

fwms@lil_ben06

step-by-step explanation:

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.