Which equation is a function of x?

x=5
x=y2+9
x2=y
x2=y2+16

Q x=y2+9

Step-by-step explanation:

x=y2+9

where x=5

5=y2+9

5/2=y+9

2.5+9=y

11.5=y

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

answer is : muchas/tipicas

have a nice day!

~recklesschicken