Question

help with attached graph?

Answer 1

(4+3i)+(-1-6i) = 4+3i-1-6i
Simplify by combining like terms: what do u get?

Answer 2

I got 5+9i

Answer 3

Remember:
(-)(+) =-
(+)(-)=-
(-)(-)=+

Answer 4

is my answer corect

Answer 5

correct*

Answer 6

4-1+3i-6i=
If you simplify this I dont get ur answer

Answer 7

so its 3-3i

Answer 8

yes it is.

Answer 9

wait I don't understand that

Answer 10

ohhhh now I see

Answer 11

i got confused because in other equations you do the opposite for the other side but these are on the same side so i see now

Answer 12

good deal. do u have any other questions?

Answer 13

i have a graph i don't understand

Answer 14

its sideways but can you understand it?

Answer 15

its not sideways, my bad lol

Answer 16

yea it is not sideways

Answer 17

but when i took the pic it was

Answer 18

@philo1234

Answer 19

The answer is (a).
But let's walk thru it an see how I got that answer

Answer 20

ok

Answer 21

Can you look at the graph and find the x-intercepts?

Answer 22

would that be the vertex?

Answer 23

or axis of symmetry

Answer 24

Nope where the graph crosses the x axis what is the x-value there

Answer 25

ok so its (-3,0) and (2.5,0)

Answer 26

Good. Now x=-3 and x=5/2 is a solution for the function, where we made f(x)=0.
Let us find the 2 factors:
So, we have: x=-3, add 3 to both sides to get the factor.
x=5/2, multiply both sides by 2 to get rid of the denominator, then subtract
5 from both sides

Do u follow so far?

Answer 27

yes

Answer 28

So what factors did u get?

Answer 29

Are u having problems finding the factors?

Answer 30

yes, im having trouble

Answer 31

x=-3, add 3 to both sides to get the factor. Factor is (x+3)
x=5/2, multiply by 2 on both side to get rid of the 2 in the denominator 2x=5, then
subtract 5 from both sides. Factor:(2x-5)

So now we have: (x+3)(2x-5)>=0

Answer 32

oh ok, i see now

Answer 33

i was trying to solve the eq. i know how to find the factors

Answer 34

So all you need to do is foil multiplication. It is >= b/c the graph is open upwards

Answer 35

Any other questions?

Answer 36

nope, im trying the problems on my own first but ill let u know if i have trouble

Answer 37

k