Question

Given q(x)=3x and r(x)=x2. What is (r◦q)(2)?

Answer 1

Answer:

36

Step-by-step explanation:

$(r\circ q)=(x)=r\bigg(q(x)\bigg)\\\\r(x)=x^2;\ q(x)=3x\\\\\text{substitute}\\\\(r\circ q)(x)=(3x)^2=3^2x^2=9x^2\\\\(r\circ q)(2)=9(2^2)=9(4)=36$