What is the absolute value of -3+4i

Y=4x^2+x-1 solve using quadratic formula

What is not true about kl and mn? what is mn? (show your work)

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36