X - 1 < = 9 or 2x > = 24
x < = 9 + 1 x > = 24/2
x < = 10 x > = 12
closed circle on 10, shaded to the left
closed circle on 12, shaded to the right
________10_______12__________
<====X X======>
the X represents closed circles
5z^2 + 6a is the simplified expression
Answer: Vertex (-3, 1) and x-intercept (-4, 0), (-2, 0)
