Question

graph of funct given.. find.... (attachment)

Answer 1

You can look at the points on the graph.
When x = -2, y = -1
f(-2) = -1

Answer 2

When x = 2, y = 2
f(2) = 2

Answer 3

Domain: [-4, 5]
Range: [-4, 4]

Answer 4

for domain I got (-

Answer 5

(-inf , inf) and range (-4,5) loc max -2, and 4

Answer 6

why is it infinity?

Answer 7

But the graph stops at x = -4 on the left and at x = +5 on the right.

Answer 8

oh I see that

Answer 9

it will be infinity if it is arrow head

Answer 10

And the lowest and highest value in the y-direction is -4 to +4 and so the range is [-4, 4]

Answer 11

The function is increasing in the intervals: [-4, -2) and about (-0.8, 4)

Answer 12

Did you join the points or was it given to you like that?

Answer 13

they where joined

Answer 14

I put the quest same way it was given

Answer 15

isn't it inc (-4,-4) to ((-2,-1)?

Answer 16

They are asking where the function is increasing and where it is decreasing.

Answer 17

It is decreasing in the intervals: (-2, -0.8) and (4, 5]

Answer 18

local max at x = -2 and x = 4

Is it a one-one function? No it is not because it fails the horizontal line test at a couple of places such as: y = 3.5 or y = -1.25.