What would the points of this graph be ? ​

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Your friend uses c=50p to find the total cost, c, for the people, p, entering a local amusement park is the cost of admission proportional to the amount of people entering the amusement park? explain.