Question

How to find the x-intercept of a square root function using a calculator?

a) Set the expression inside the square root equal to zero
b) Set the entire function equal to zero
c) Use the quadratic formula
d) There are no x-intercepts for a square root function

Answer 1

To find the x-intercept of a square root function using a calculator, you need to set the entire function equal to zero and solve for x. The x-intercept is the value of x where the function crosses the x-axis.

Step-by-step explanation:

To find the x-intercept of a square root function using a calculator, you need to set the entire function equal to zero. The x-intercept is the value of x where the function crosses the x-axis.

Here's an example:

If the square root function is f(x) = √(x - 2), you would set f(x) equal to zero:
f(x) = √(x - 2) = 0

Then, solve for x by squaring both sides of the equation:
x - 2 = 0
x = 2

So, the x-intercept is at x = 2