Question

Armando is two years younger than Rosa. The relationship between their ages can be represented by the equation



A = R − 2

If Armando's age is graphed as a function of Rosa's age, what will be the coordinates of the x- and y-intercepts for the graph of this function?

Answer 1

x-intercept will be when A=0 (y=0). Then R - 2 = 0 Hence R = 2. Finally, the coordinates of the x-intercept will be (2,0). For y-intercept R must to be equaled 0, then y = -2.
The coordinates of y-intercept will be (0,-2).