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Couldn’t fit the whole problem in one picture so the rest will be listed in the comments

Couldn’t fit the whole problem in one picture so the rest will be listed in the comments-example-1
User Cnfn
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1 Answer

21 votes
21 votes

SOLUTION

PART A

To find the solution to the given values in part A we trace each value on the x-axis to their corresponding point on the graph.

For example,

i) h(-2), we trace the value of -2 to the point where it crosses the graph. When we trace -2 this gives 0

Therefore


h(-2)=0

ii)h(0), we trace the value of 0 to the point where it crosses the graph. When we trace 0 this gives -2

Therefore


h(0)=-2

iii) h(2), we trace the value of 2 to the point where it crosses the graph. When we trace 2 this gives 2


h(2)=2

iv) h(3, we trace the value of 3 to the point where it crosses the graph. When we trace 3 this gives 3


h(3)=3

PART B

i) The domain of h is the distance covered by the graph along the horizontal axis. This gives,


\text{Domain}=\lbrack-3,4\rbrack

ii) The range of h is the distance covered by the graph along the vertical axis. This gives,


\text{Range}=\lbrack-2,3\rbrack

PART C

To find the values of h(x)= 2, we trace 2 on the vertical axis to the points it touches the graph then trace the points down to the horizontal axis.

Therefore, h(x)=2 gives the following values for x


x=-3,2,4

PART D

To find the values of h(x)<=2, from the graph we trace 2 on the vertical axis to the points it touches the graph then trace the points down to the horizontal axis.

But this time, since 2 would give -3 and 2 and they fall in a range the answer would be different from part C and would be written as


\lbrack-3,2\rbrack\text{ and 4}

PART E

To find the net change in h between x= -3 and 3 we trace the value of -3 and 3 from the horizontal axis to the graph, then to their corresponding points on the vertical axis. Then we subtract the solution to get the net change.

When x=-3 this gives 2 on the vertical axis

When x = 3 this gives 3 on the vertical axis

Therefore, the net change is 3 -2 = 1

User Kevin MOLCARD
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