To review for you test. Work the Practice Problems on a separate sheet of paper. What you need to
know & be able to
Things to
do
remember
Problem
Problem
1. Function or Not a
2. Function or Not a Function
Function
{(3,3),(4,3) (4,4),(6,5)}
Identify: Function
Graphs: Must
or Not a Funtion
pass the Vertical
Line Test!
EXPLAIN
Points: Inputs
cannot repeati
0
4. -7(x² + 2) - (3x+1)
Combining
Like Terms
• Adding: add
3. (8k+ 3) + (k+7)
the numbers,
keep variable
the same.
• Multiplying:
multiply the
numbers, adds
the exponents.
f(x)= x2 + 3x - 5
g(x) = 2x2 - x + 2
1h(x) = 3x³
5. f(x)+g(x)
6. g(x)-f(x)
7. 3h(x) - 28(x)
Given functions,
simplify the
expressions.
• Choose the
correct
functions.
• Pay attention
to where the
number is if
there is one.
. Combine Like
Terms.
8. f()+g(-2)
9. 3f(x) + 2g(x)