Answer:
k=1/2f
Step-by-step explanation:
f(2)=12 therfore making, f(x)=kx^2, to f(2)=k(2)^2 because the 'x' in f(x) is 2.
Step 1:
divide both sides of the equation by 2;
f=2k
Step 2:
swap the sides of the equation;
2k=f
Step 3:
divide both sides by 2 once again;
k=1/2f
