Question

question 1 of 45 a function, f, is defined by $f(x,y)=3x^2 - 4y$. what is the value of $f(3,2)$? a 0 b 10 c 19 d 24

Explanation:

Step1: Substitute x=3, y=2

$f(3,2)=3(3)^2 - 4(2)$

Step2: Calculate squared term

$3(3)^2=3\times9=27$

Step3: Calculate linear term

$4(2)=8$

Step4: Subtract terms

$27 - 8=19$

Answer:

C. 19