Question

question 1
taka reads the following equation aloud: $f(x) = 3x$.
fill in the blank to complete what he says: \$f$ ____ of $x$ equals three $x$.\

question 2
which of the following sets of ordered pairs represents a function?
$(-14, -26), (13, -15), (22, -26), (-16, 32)$
$(-14, -26), (22, -15), (22, -26), (22, 32)$
$(-14, -26), (13, -15), (-15, -26), (-15, 32)$
$(-14, -26), (-14, -15), (22, -21), (-16, 32)$

Explanation:

Step1: Solve Question 1

The notation $f(x)$ is read as "f of x".

Step2: Solve Question 2 (Check function rule)

A function requires each input (first value of ordered pair) to have exactly one output.

• Set 1: All inputs $-14,13,22,-16$ are unique.
• Set 2: Input $22$ has 3 outputs.
• Set 3: Input $-15$ has 2 outputs.
• Set 4: Input $-14$ has 2 outputs.

Answer:

Question 1: of
Question 2: $(-14,-26),(13,-15),(22,-26),(-16,32)$