Question

what are the coordinates of Q

Answer 1

set the equations equal to each other and solve for x:

x² - 3 = x + 3
x² - x - 6 = 0

 its a quadratic!

(x-3)(x+2)=0

so x = 3 or x =-2

 substitute x = 3 into either equation to find the corresponding value of y

∴ y = 3² - 3
     y = 6

the point Q is 3, 6