Bytelearn - cat image with glassesAI tutor

Welcome to Bytelearn!

Let’s check out your problem:

Use the following function rule to find f(23)f(23).\newlinef(x)=7123xf(x) = 7\sqrt{123 - x}\newlinef(23)=f(23) = _____

Full solution

Q. Use the following function rule to find f(23)f(23).\newlinef(x)=7123xf(x) = 7\sqrt{123 - x}\newlinef(23)=f(23) = _____
  1. Identify Function and Input: Identify the function and the input value.\newlineWe are given the function f(x)=7123xf(x) = 7\sqrt{123 - x} and we need to find the value of f(23)f(23).
  2. Substitute Input into Function: Substitute the input value into the function.\newlineTo find f(23)f(23), we replace xx with 2323 in the function:\newlinef(23)=712323f(23) = 7\sqrt{123 - 23}
  3. Perform Subtraction in Square Root: Perform the subtraction inside the square root.\newlineCalculate the value inside the square root:\newline12323=100123 - 23 = 100
  4. Calculate Square Root: Calculate the square root.\newlineSince the square root of 100100 is 1010, we have:\newline100=10\sqrt{100} = 10
  5. Multiply by Coefficient: Multiply the square root by the coefficient.\newlineNow, multiply the square root by 77 to find f(23)f(23):\newlinef(23)=7×10f(23) = 7 \times 10
  6. Perform Final Multiplication: Perform the multiplication to get the final answer. f(23)=70f(23) = 70

More problems from Evaluate functions