Answer:
Step-by-step explanation:

The given equation is a Quadratic equation, so it's graph must be a parabola, and the Coefficient of x² is positive that means the parabola must have an opening upward.
And 2 is added to the ideal equation, so the parabola must have shift 2 units up from x - axis.
From the above information, we can easily conclude that the Correct representation is done in graph 4
Where is the picture of the triangle?
128 degrees.
An angle's supplement, when added to the original angle, will form a straight (180 degree) angle.
Ok, listen up
This sign -> "<" means less than
Therefore, the expression is 5 < 8