Triangle XYZ is isosceles. The measure of the vertex angle, Y, is twice the measure

Answers:
options a, b, c and e are correct
explanation:
to get the correct choice(s), we will simply compute the given equation for each of the given values and check whether the given order pair satisfies the equation or not.
option a:
for the order pair (-3,-2):
y < 0.5 x²
-2 < 0.5(-3)²
-2 < 4.5
the equation is > this option is correct
option b:
for the order pair (-2,1):
y < 0.5 x²
1 < 0.5(-2)²
1 < 2
the equation is satisfied > this option is correct
option c:
for the order pair (-1,-2):
y < 0.5 x²
-2 < 0.5(-1)²
-2 < 0.5
the equation is satisfied > this option is correct
option d:
for the order pair (-1,2):
y < 0.5 x²
2 < 0.5(-1)²
2 < 0.5
the equation is not satisfied > this option is incorrect
option e:
for the order pair (1,-2):
y < 0.5 x²
-2 < 0.5 (1)²
-2 < 0.5
the equation is satisfied > this option is correct
option f:
for the order pair (1,2):
y < 0.5 x²
2 < 0.5 (1)²
2 < 0.5
the equation is not satisfied > this option is incorrect
hope this : )