Evaluate y = x² When x = 7: Function Value Calculation

Question

What is the value of y for the function?

y=x2 y=x^2

of the point x=7 x=7 ?

Video Solution

Step-by-Step Solution

To find the value of y y when x=7 x = 7 in the function y=x2 y = x^2 , we will follow these straightforward steps:

  • Step 1: Substitute x=7 x = 7 into the function. Therefore, y=(7)2 y = (7)^2 .
  • Step 2: Calculate the value of 72 7^2 . The expression 72 7^2 means 7×7 7 \times 7 .
  • Step 3: Perform the multiplication. 7×7=49 7 \times 7 = 49 .

Thus, when x=7 x = 7 , the value of y y is 49 49 .

Therefore, the value of y y at x=7 x = 7 is y=49 y = 49 .

Answer

y=49 y=49