Question

Help me!!! Please to solve this problem of o. Math

a) Given a function f(x) = 2x + 3. Find (a) f(1), (b) f(-5), (c) f(a), (d) f(a + 2) (e) f(b)?

b) let f(x) = x + 4 define a function in the closed interval of -55x55, find f(-2), f(3) and f(7). ​

Answer 1

Explanation:

`thank \: you`

Answer 2

a:-

f(x)=2x+3

`\\ \rm\Rrightarrow f(1)=2(1)+3=2+3=5`

`\\ \rm\Rrightarrow f(-5)=2(-5)+3=-10+3=-7`

`\\ \rm\Rrightarrow f(a)=2a+3`

`\\ \rm\Rrightarrow f(a+2)=2(a+2)+3=2a+4+3=2a+7`

`\\ \rm\Rrightarrow f(b)=2b+3`

b:-

f(x)=x+4

`\\ \rm\Rrightarrow f(-2)=(-2)+4=2`

`\\ \rm\Rrightarrow f(3)=3+4=7`

`\\ \rm\Rrightarrow f(7)=7+4=11`