What is the range of the function y = x^2?
Every mathematical function has a range and a domain. The range of a function is the set of possible outputs the function has. In this case, we know that our output (y) must be a positive number because if we take any real number (x) and square it, the result will be positive (negative x negative = positive).So we know that the range will not include any negative values. However, we can include 0 in the range as 0 x 0 = 0. Therefore, our range will be 0 to infinity (as x is any real number).
MB
Related Maths GCSE answers
All answers ▸How do you find the mean of a grouped frequency table?
There are three boxes and one has a prize inside. You are told to choose a box. One of the other boxes is then opened, showing that it is empty. You are given the option to switch your choice to the other remaining box. Should you switch? Why?
A curve has equation y = 4x^2 + 5x + 3. A line has equation y = x + 2. What is the value of x?
Nancy is driving and makes a wrong turn. The satnav indicates that her journey will take an extra 7 minutes. Nancy drives at an average speed of 60km/h to the nearest 5km/h. What's the greatest possible distance traveled in this detour in km to 2.d.p?