Which quadratic equation has the roots -1+4i and -1-4i a. x^2+2x+2=0 b. 2x^2+x+17=0 c. x^2+2x+17=0 d. 2x^2+x+2=0

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

What are the solutions of the system? y = x^2 + 2x +3y = 4x - 2a. (-1, -6) and (-3, -14)b. (-1, 10) and (3, -6)c. no solutiond. (-1, -6) and (3, 10)

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?