x-intercept = - 2 , y-intercept = 6
to find the intercepts, that is where the graph crosses the x and y axes
• let x = 0, in the equation for y-intercept
• let y = 0, in the equation for x-intercept
x = 0 : y = 0 + 6 = 6 ⇒ (0, 6 ) is the y-intercept
y = 0 : 3x + 6 = 0 ⇒ x = - 2 ⇒ (- 2, 0 ) is the x-intercept
