Q. Use the following function rule to find f(49).f(x)=11+10xf(49)=_____
Identify function rule and input: Identify the function rule and the input value.We are given the function rule f(x)=11+10x and we need to find the value of f(49).
Substitute input into rule: Substitute the input value into the function rule.To find f(49), we substitute x with 49 in the function rule.f(49)=11+1049
Calculate square root: Calculate the square root of the input value.The square root of 49 is 7, since 7×7=49.f(49)=11+10×7
Multiply square root by 10: Multiply the square root result by 10.Now we multiply 7 by 10 to get 70.f(49)=11+70
Add 11 to result: Add 11 to the result of the multiplication.Finally, we add 11 to 70 to get the value of f(49).f(49)=11+70=81