Question

Ive been stuck for hours.. Please help..?
f(x)=2-2x
Evaluate f(4)
a 14
b -10
c -5
d 12
Which ordered pair is the turning point of the graph of f(x)=|x-4|
a 4,0
b 0,4
c 0,-4
d -4,0

Answer 1

I can help. Fornstarters though I'd like you tocheck the function - are u sure it is 2-2x, and not -2-2x?

Answer 2

Oops it shouldnt be 2-2x it should be 2-3x.. i thought i fixed that

Answer 3

input 4 into x

Answer 4

i think you can continue from here

Answer 5

Ok that makes more sense . Now one ofnthe four answers is possible.

Answer 6

Do you knowhow to go about the second part?

Answer 7

No, i do online schooling, and its a brand new teacher at teaching, and she barely went over the topic. & in our course there isnt much reading. :/ All it we really do is just quizzes after quizzes.. little time with the teacher

Answer 8

|x-4| actually means -x+4=0

Answer 9

Hmm I think it is not D. But I'd prefer if we came up with the solution together.

Answer 10

i think you can take it from here

Answer 11

i already got the solution on there

Answer 12

x=4

Answer 13

(x,y) Now what do u think the answer is if Y=0

Answer 14

Would you be able to draw the graph of the function |x-4|

Answer 15

i did that on my phone
I think i actually just got the answer.. Would it be -10

Answer 16

If you are still with the first part then yes it is -10.

Answer 17

Am correct it is A

Answer 18

for the second solution

Answer 19

1.B
2.A

Answer 20

I need to be absolutely sure of this:

Does your "f(x)=2-2x" represent a linear function of the form y=mx+b, or did you mean "exponentiation," as in \[f(x)=2-2^x?\]