If f(x) = 4x + 12 is graphed on a coordinate plane, what is the y-intercept of the graph? 4 8 12 16

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Don't know how to find x given these segment lengths

What is the absolute value of the complex number -4-sqrt2i