Question

What is the range of the function y = x^2?



all real numbers

x ≥ 0

y ≥ 0

Answer 1

please help

Answer 2

domain of y=x^2
is negative infinity, infinity
range is zero to infinity !

Answer 3

Therefore, the range is: ALL REAL NUMBERS GREATER THAN OR EQUAL TO 0. or simply: 0 to +INFINITY.

Answer 4

Source: http://answers.yahoo.com/question/index?qid=20070819161340AAQlbxc

Answer 5

thx

Answer 6

wait so B?
or A?

Answer 7

Here's the full explanation from the site (Read this and you got your answer!):
"Hi there! the best way of solving this is picturing out what the graph might look like. Let's assume you had the graph of a parabola y=x^2. You know that for every x you substitute, there'd always be a value for y. Thus, the domain is ALL REAL NUMBERS or from -INFINITY to + INFINITY. The range on the other hand is different. We know that any number raised to the second power will always yield a positive integer or 0. Thus, y=x^2 won't have any negative y-values as the graph opens upward. Therefore, the range is: ALL REAL NUMBERS GREATER THAN OR EQUAL TO 0. or simply: 0 to +INFINITY. "

Answer 8

got it now thank you

Answer 9

Your welcome again!