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Svetach [21]
3 years ago
14

The topic is piecewise functions, can someone help? i’m a little confused :)

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0

Given:

The piecewise function is:

f(x)=\begin{cases}x+5&x

To find:

The values of f(-4),f(-2),f(0),f(3).

Solution:

For x, the function is

f(x)=x+5

For x\geq -2, the function is

f(x)=x^2+2x+3

a) The value of f(-4) is:

f(-4)=-4+5

f(-4)=1

b) The value of f(-2) is:

f(-2)=(-2)^2+2(-2)+3

f(-2)=4-4+3

f(-2)=3

c) The value of f(0) is:

f(0)=(0)^2+2(0)+3

f(0)=0-0+3

f(0)=3

d) The value of f(3) is:

f(3)=(3)^2+2(3)+3

f(3)=9+6+3

f(3)=18

Therefore, the required values are f(-4)=1,f(-2)=3,f(0)=3,f(3)=18.

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