Pearson Algebra 1 Common Core, 2015
PA
Pearson Algebra 1 Common Core, 2015 View details
5. Graphing Square Root Functions
Continue to next subchapter

Exercise 1 Page 641

The domain of radical functions only includes values for which the radicand is non-negative.

x ≥ -3

Practice makes perfect
The domain of radical functions only includes values for which the radicand is non-negative.

y=sqrt(x+3) We can solve for these values of x by only looking at the radicand. x+3 ≥ 0 ⇔ x ≥ -3 The domain is all real numbers greater than or equal to -3.