Let f(x)= x^2+4, and g(x)= 3x; Find g(f(1))
Suppose f(x)=x2+4 and g(x)=3xg(f(x)) would therefore be 3(x2+4) and that equals 3x2+12the next step would then be to substitute x with 1 to find the solution for (g(f(1)).By substituting 1 for x, you then use BODMAS to solve the equation. 3(1)2+12 would therefore equal 15 so g(f(1)) is 15.
MC
Related Maths IB answers
All answers ▸What is the simples way to integrate by part?
Let f(x) = px^2 + qx - 4p, where p is different than 0. Showing your working, find the number of roots for f(x) = 0.
Three girls and four boys are seated randomly on a straight bench. Find the probability that the girls sit together and the boys sit together.
How do you integrate xln(x) between the limits of 0 and 2?