Question

question 5 of 10 step 2 of 4
consider the following functions.
$f = \\{(1, -1), (-2, 4)\\}$
and
$g = \\{(5, 0), (1, 4), (-1, 0), (-2, 5)\\}$
step 2 of 4: find $(f - g)(1)$.
answerhow to enter your answer (opens in new window) 2 points
$(f - g)(1) = \square$
keypad
keyboard shortcuts

Explanation:

Step1: Recall function subtraction rule

$(f-g)(x) = f(x) - g(x)$

Step2: Find $f(1)$ from set $f$

From $f = \{(1, -1), (-2, 4)\}$, $f(1) = -1$

Step3: Find $g(1)$ from set $g$

From $g = \{(5, 0), (1, 4), (-1, 0), (-2, 5)\}$, $g(1) = 4$

Step4: Calculate $(f-g)(1)$

$(f-g)(1) = f(1) - g(1) = -1 - 4$

Answer:

$-5$