Which best describe the triangle

If x = 12 and y = 3, what is the value of x - y 2? 81 6 3 18

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left