Question

Anyone good with algebra1?

Answer 1

For the graph below, what should the domain be so that the function is at least 200?

graph of y equals minus 2 times the square of x plus 30 times x plus 200

−5 ≤ x ≤ 20
0 ≤ x ≤ 15
x ≥ 0
All real numbers

Answer 2

i think this is D but u need someone to check it please...

Answer 3

@mayankdevnani @mathmale @Safa102 @soprano.h.d0816 @SamsungFanBoy

Answer 4

I*

Answer 5

What's the graph look like?

Answer 6

"at least 200"

or

\(\sf \ge 200\)

Answer 7

want the picture?

Answer 8

Yes please.

Answer 9

What do you have to plug in for 'x' to get 200?

Answer 10

this is the graph...

Answer 11

Look at the graph..from which points does the graph intersect 200?

Answer 12

meaning the (x,y)?

Answer 13

Yes.

Answer 14

Yes..meaning..what is the 'x' values when the graph reaches 200 for 'y'

Answer 15

what are*

Answer 16

0?

Answer 17

Yep

Answer 18

Yes, and what is the other one?

Answer 19

the other x?

Answer 20

Look at 200 y value and go across until you find the other x value

Answer 21

Yes..look at the same line of (0, 200), where else does the graph intersect?

Answer 22

where it curves?

Answer 23

As it starts to decrease, there is another 200 point. What is that point?

Answer 24

(15,200)

Answer 25

Yes..

Answer 26

So in between 0 and 15, the graph is greater than or equal to 200

Answer 27

so its B?

Answer 28

Yep, you got it.

Answer 29

thanks for your help

Answer 30

No problem.