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4 votes
What is the range of h(x)?

–∞ < h(x) < ∞
h(x) ≤ 5
h(x) ≥ 5
h(x) ≥ 3

2 Answers

4 votes

Answer:

1. For x<3, h(x)=x+2

now x+2 is an increasing line (a practical way to check, h(1)=3, h(2)=4)

the largest value it takes is at 3, not inclusive, so h(3)=5 not inclusive.

Range_1= (-∞, 5)

2. for x> or equal to 3, h(x)=-x+8, which is a decreasing line (check h(4)=4, h(5)=3 )

so this line takes its maximal value at x=3, f(3)=5 and then takes any other value to -∞.

Range_2=(-∞,5]

3. Range(h)=Range1∪Range2=(-∞, 5)∪(-∞,5]=(-∞,5] (B)

Explanation:

User Sravan K Reddy
by
8.5k points
5 votes

Answer:

b

Explanation:

User Oblivion
by
8.0k points

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