Can a parabola both have a maximum and a minimum why or why not

No

Step-by-step explanation:

The max or min of a parabola is determined by a in the following general equation.

y = ax^2 + bx + c

a cannot equal 0. Otherwise you get a line from bx + c = y

if a<0 then you get a maximum

if a>0 then you get a minimum.

The red is a>0

The blue is a<0

your answer would be 12

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !