Which of the following are accurate descriptions of the distribution below?

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?

What is the common difference for this arithmetic sequence? -6,-2,2,6,10 a.4 b.5 c.3 d.6

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?