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tia_tia [17]
3 years ago
12

Can someone show me how to solve this

Mathematics
2 answers:
NISA [10]3 years ago
7 0

Answer:

f(1)=13

f(-9)=88

f(0)=0

f(-15)=20

The above mentioned are false statements

Step-by-step explanation:

f(1)=13 : false because "13" is out of range -40≤f(x)≤-10

f(-9)=88 : false because "88" is out of range -40≤f(x)≤-10

f(0)=0 : false because "0" is out of range -40≤f(x)≤-10

f(-15)=-20 : false because "-15" is out of domain -10≤x≤20

sergij07 [2.7K]3 years ago
7 0

If the domain is -10\leq x \leq 20, it means that you can only accept inputs between -10 and 20.

In other words, you can write f(x) only is x is between -10 and 20.

This rules out the option f(-15)=-20, because you can't accept -15 as input, because it's less than -10.

Similarly, if the range is -40\leq f(x) \leq -10, it means that the function can only output numbers between -40 and -10.

In other words, you can write f(x)=k only is k is between -40 and -10.

This rules out the first two options, because their output is positive, and also f(0)=0

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