What is an equation of the line with slope -3 that passes through (2,4)

41/2 - 1 1/3 what is the answer as a fraction?

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

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