Answer 1.a):
x-intercept= (2,0)
Because graph crosses x-axis at x=2
Answer 1.b):
y-intercept= (0,4)
Because graph crosses y-axis at y=4
Answer 1.c):
Domain= All real numbers.
Because graph covers all x-values along x-axis when checking from left side to right side.
Answer 1.d):
Range = All real numbers.
Because graph covers all y-values along y-axis when checking from bottom side to up side.
Answer 1.e):
Minimum = NO
Answer 1.f):
Maximum = NO
Answer 1.g):
Increasing Interval = NO
Because graph goes all the time downward.
Answer 1.f):
Decreasing Interval = (-infinity, infinity)
Because graph goes all the time downward when looking from -infinity to infinity.
Same way we can solve other problems.
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Answer 2.a):
x-intercept= (-1,0), (2,0)
Answer 2.b):
y-intercept= (0,-2)
Answer 2.c):
Domain= All real numbers.
Answer 2.d):
Range = [-2.25, infinity)
Answer 2.e):
Minimum = -2.25
Answer 2.f):
Maximum = NO
Answer 2.g):
Increasing Interval = (0.5, infinity)
Answer 2.f):
Decreasing Interval = (-infinity, 0.5)
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Answer 3.a):
x-intercept= (-2,0)
Answer 3.b):
y-intercept= (0,-6)
Answer 3.c):
Domain= All real numbers.
Answer 3.d):
Range = (-infinity, 2)
Answer 3.e):
Minimum = NO
Answer 3.f):
Maximum = NO
Answer 3.g):
Increasing Interval = NO
Answer 3.f):
Decreasing Interval = (-infinity, infinity)
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Answer 4.a):
x-intercept= (-4,0), (2,0)
Answer 4.b):
y-intercept= (0,-2)
Answer 4.c):
Domain= All real numbers.
Answer 4.d):
Range = (-3,infinity)
Answer 4.e):
Minimum = -3
Answer 4.f):
Maximum = NO
Answer 4.g):
Increasing Interval = (-1, infinity)
Answer 4.f):
Decreasing Interval = (-infinity, -1)