Question

f(15)-f(-15)=?

Answer 1

it depends on the function

Answer 2

Because you are entering the positive value and the negative value in both eqn, if you were adding them, it would be 0. But since you are subtracting the negative value, it will be 2f(x)

Answer 3

function is
Let f(x){x if x>0
-x<0

Answer 4

in this case we have x - (-x) = 2x

Answer 5

putting the value 15 in
15 - (-15) = 30

Answer 6

can u help with absolute value

Answer 7

yes

Answer 8

let f(x)=(x+3) which of the following statements hold true
A.f(x)=x-3ifx>3
B.f(x)<0 if x=0
C.f(x)=x-3 if x>0
D.f(x)=-(x-3) if x<3

Answer 9

the (x+3) at top are supposed the have straight lines on each side

Answer 10

right that means that you take the magnitude or absolute value of whats inside the straight lines

eg if the value of 'the inside' is -4 the absolute value is 4
whether -ve or +ve the +ve value is taken

Answer 11

ok

Answer 12

now if x>3 f(x) > 6 so A is false

Answer 13

ok

Answer 14

if x = 0 what is f(x) equal to?

Answer 15

o

Answer 16

i think

Answer 17

no x + 3 = 3 right?

Answer 18

oh yea

Answer 19

so that makes f(x) = mod ( x+3) = 3

(I used mod instead of the vertical lines)

Answer 20

ok

Answer 21

so B is false

Answer 22

ok

Answer 23

what about C
if x = 1 say what does that make f(x) ?

Answer 24

4

Answer 25

right so is C correct?

Answer 26

can u help me with morw

Answer 27

well is C correct?

C says f(x) = x -3 and x = 1

Answer 28

like diffrent questions

Answer 29

no I need to leave bery soon

Answer 30

can u give me the answer real fast

Answer 31

none are true

Answer 32

how is the graph of y=f(x)=absolute value of x transformed into the graph of g(x)=-2 absolute value of x-5
A.the graph is stretched vertically by the factor of 1/2
B.the graph is reflected about the x axis
C.the graph is stretched vertically by a factor of 2
d.the graph is shifted horizonally 5 units to the right
E.the graph is shifted horizonally 5 units to the left