Free functions calculator explore function domain, range, intercepts, extreme points and asymptotes stepbystep Explanation This is the equation of a circle with its centre at the origin Think of the axis as the sides of a triangle with the Hypotenuse being the line from the centre to the point on the circle By using Pythagoras you would end up with the equation given where the 4 is in fact r2 To obtain the plot points manipulate the equation as below Given x2 y2 = r2 → x2 y2 = 4 The description below represents function a and the table represents function b function a the function is 5 more than 3 times x function b x y −1 2 0 5 1 8 which statement is correct about the slope and yintercept of the two functions?
Quadratics