The graph of which function has an axis of symmetry at x=-1/4?

2x^2 + 1x + C

Step-by-step explanation:

The three coefficients of a quadratic function are a, b and c, where a is the coefficient of the x^2 term.

The equation of the axis of symmetry is

          -b

x =    and   here we are told that this x is -1/4.

          2a

From this info we can assume that a = 2 and that b = 1

and so the function is likely 2x^2 + 1x + C, where C is a constant.  Doesn't matter what C is in this case.

15: 24

62.5%

step-by-step explanation:

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!