(x) = x2 – 4x – 21. Type the correct answer in each box to complete the statement. Write the points as ordered pairs, (a, b).

When graphed, the function will have a y-intercept at
and a vertex at
.

y=−9/2x+10

step-by-step explanation:

let's solve for y.

0−9x−2y=−20

step 1: add 9x to both sides.

−9x−2y+9x=−20+9x

−2y=9x−20

step 2: divide both sides by -2.

−2y

−2

=

9x−20

−2

y=

−9

2

x+10

if you mean

then it's c. 8, -7/3

but if you mean

then it is

1 1/5

step-by-step explanation: