A, C, and E.
you can check them by putting into y=mx+b form. if m is negative then as domain increases range decreases.
What are the angles?
if all of them are below 90 degrees, it is acute.
if one angle is 90 degress, it is right
if one angle is more than 90 degrees, it is obtuse
2x + 4 1/5 = 9
2x = 9 - 4 1/5
2x = 5 1/5
2x divided by 2 = x
5 1/5 divided by 2 = 13/5 (2 3/5, or 2.6)
x = 13/5 (2 3/5, or 2.6)
The answer is 38 to the power of 2
1 times 104
2 times 52
4 times 26
8 times 13
