Thread: Functions

I need help with functions.

The book gives me
x | 0 | 1 | 2 | 3 | 4 | 5 | 6 |
f(x) | 0 | 1.5 | 3 | 4.5 | 6 | 7.5 | 9 |


&&

p | 0 | 1.5 | 3 | 4.5 | 6 | 7.5 | 9
g(p)| 0 | 5.25| 10.5 | 15.75 | 21 | 26.75 | 31.5 |

and ask me to figure out

f(3)
g(4.5)
g(f(3))
g(f(6))

helpppp!!!

Originally Posted by princess7

I need help with functions.

The book gives me

Code:

 
x    | 0 | 1   | 2 | 3   | 4 | 5   | 6 | 
f(x) | 0 | 1.5 | 3 | 4.5 | 6 | 7.5 | 9 |

&&

Code:

 
p   | 0 | 1.5 | 3    | 4.5   | 6  | 7.5   | 9    |
g(p)| 0 | 5.25| 10.5 | 15.75 | 21 | 26.75 | 31.5 |

and ask me to figure out

f(3)
g(4.5)
g(f(3))
g(f(6))

helpppp!!!

Hi princess7,

According to your (x, f(x)) table, when x = 3, f(3) = 4.5

According to your (p, g(p)) table, when p = 4.5, g(4.5) = 15.75

When p = f(3), then p = 4.5, therefore g(f(3))=g(4.5) = 15.75

When p = f(6), then p = 9, therefore g(f(6)) = g(9) = 31.5