Write an equation in point-slope form of the line having the given slope that contains the given point. m=4, (2,5) select one: a. y−2=4(x−5) b. y=4x+5 c. y−5=4(x−2) d. y−5=2(x−4)

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.