So to identify the y intercept we set the equation such that x is 0 but first we must rewrite the equation as: y= 7(x-6)+4 now if x=0 then y= -26 similarly if y=0 you get the x-intercept, so if y=0 x=5.428571428571429 if you want to know how i got their message me. till then hope this helps :)
