Will give f(x) = x^2 -2x -3 /x-3 identify the discontinuity

Which graph represents the parent function of y=(x+2)(x-2)

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

Graph the line with the given slope m and y-intercept b. m=-3,b=1