Question 3: Find the vertex of - x2 - 4x + 12
O a. (-2, 16)
O b. (2,4)
O c. (2.0)
O d. (-2,4)

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

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.