SOLUTION: Write the domain and range in interval notation for g(x) = √(x + 1). Please explain your thought process in step by step format. I am completely lost and need help figuring
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Question 771566: Write the domain and range in interval notation for g(x) = √(x + 1). Please explain your thought process in step by step format. I am completely lost and need help figuring out this equation.
Thank you! Answer by josgarithmetic(39613) (Show Source):
You can put this solution on YOUR website! Square root function is related to squaring function in that one is like the inverse of the other. What is g(x), the upper half of a horizontal parabola, from a parabola with symmetry axis parallel to the x axis.
Sketching the graph is a good idea:
DOMAIN? What can x be? What can x NOT be?
RANGE? Same questions. Can you find any value of x for which y is -100? How can y be -25? Can y be +350? Why or why not?
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