2. What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?

A) {0,4,3} B) {0,4,5} C) {8,4,3} D) {8,4,5}

5. What is the domain of the function f(x) = (x + 3)^2?

A) all integers B) all real numbers

C) all integers greater than zero D) all real numbers greater than zero

### 3 Answers | Add Yours

Please note the answer to Q1. is C. (95 degrees)

The angles of a quadrilateral = 360 degrees

`therefore 80 + 100 + 85 + ...= 360`

`therefore` remaining angle = `360 -(265)`

Please remember to always post individual questions separately in terms of eNotes rules.

`therefore` **The remaining angle is C.95 degrees**

**Sources:**

Q.2 What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?

f(2)= 0

f(0)= 4

f(1)= 3

Ans. A

Q.5 What is the domain of the function f(x) = (x + 3)^2?

Domain is all real number.

f(x)- is defined for every value of real numbers.

Range={0,3,4}

Ans. B

Q1. Sum of all angles of quadrilateral =360

Sum of three angles=80+100+80

=260

Fourth angle= sum of four angles - sum of three angles

=360- 260

=100

Ans. D

Q.2 What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?

f(2)= 0

f(0)= 4

f(1)= 3

Ans. A

Q.5 What is the domain of the function f(x) = (x + 3)^2?

Domain is all real number.

f(x)- is defined for every value of real numbers.

Range={0,3,4}

Ans. B

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