Question

May Some Please Check My answers

Answer 1

Am i correct?

Answer 2

2 & 3 are correct, i'm like having a brain fart on how to do the first. How'd you get it?

Answer 3

sorry suppose to be -4

Answer 4

Oh actually -3 is right, I graphed it

Answer 5

is the first one correct now

Answer 6

Lol sorry!

Answer 7

hmmm i was mainly confused with that one

Answer 8

Are you allowed to use a calculator for that one?

Answer 9

*a graphing calculator

Answer 10

yes i am

Answer 11

You don't need one, but you can graph it. But I rememeber now, sometimes you can't always see the y-int from the graph.
To find the y-intercept of a quadratic equation like that one, you plug in zero for x and solve for y.
So it'd look like
y=-2x2-4x-3
y=-2(0)^2-4(0)-3
y=3

Answer 12

*-3, ugh im a mess today