If f(x) = (2x + 1)(2x + 3), complete the square and determine the minimum or maximum value of the function.
a) f(x) = 4(x + 14)^2 + 3 and f(x) has a maximum value f(−1/4) = 3.
b) f(x) = 4(x + 14)^2 + 3 and f(x) has a minimum value f(−1/4) = 3.
c) f(x) = 4(x + 1)^2 − 1 and f(x) has a maximum value f(−1) = −1.
d) f(x) = 4(x + 1)^2 − 1 and f(x) has a minimum value f(−1) = −1.

write out the polynomial, with leading coefficient 1:

y = 1 (x+2)^1 (x-7)^1 (x-5)^2

next time, share the answer choices.   .

one way is to plot 2 points and connect them which is what the answer choices seem to be doing

it seems to be using the y intercept and the slope

y=mx+b, m=slope, b=y-intercept (where the line hits the y axis)

slope=rise/run

y-intercept is where the line croses the y axis which is the y value where x=0

you seem to have given the wrong slope (you didn't put a number in front of te x, it should be 2/3 or 3/2 looking at the answer options)

y=? x-1

m=? because of your fault

b=-1

so it has a slope of ? and y intercept of -1, meaning it pases through (0,-1)

so draw point (0,-1) (so answer is one of the first 2 option)

if slope is 2/3, then go up 2 and right 3 then draw line through those 2 points

if slope is 3/2, then go up 3 and right 2 then draw line through those 2 points