How many different ways can you make change for $.50 using only nickels, dimes, and quarters?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Is there a direction u in which the rate of change of f(x, y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

Plzzz answer both questions and i will give you 100 points