What's In The Middle Of America And Australia? Write the letter of each answer in the box containing the exercise number.
Answers
Estimate the intercepts of the graph of the function.
1.
V
2.
ty у
y = 2 x + 3
Ty=2x-6
-8
Y
3.
tyy=-(x - 2)2
7
14
E. x-intercept: about 1,
y-intercept: about - 1
T. x-intercept: about 3,
y-intercept: about -6
L. x-intercept: about -6,
y-intercept: about 3
T. x-intercept: about -1,
y-intercept: about 1
E. x-intercept: about 2,
y-intercept: about -4
-4
4
1
= x2 - 4
6.
5.
ya
-2
2x
2 x
y = (x - 1)
Hy = (x + 1)3
H. c-intercepts: about -2 and 2,
y-intercept: about - 4
R. positive: -5 < x < 1, negative:
x < -5 and x > 1, increasing:
x < -2, decreasing: * > -2,
y-→-o as I — to and
V →-o as X -> -
Approximate when the function is positive, negative,
increasing, or decreasing. Then describe the end
behavior of the function.
8.
7.
y = - x + 2 +3 ty
y = -2x + 2
-2
2x
E. negative: for all real numbers,
increasing: x < -2 , decreasing:
X > -2; y → -oo as x → too
and y → -- as x -
-4
-2
10.
9.
y =
- (x3 + 6x2 – 32)
các + 2)2 - 1 AY
ty у
t
R. positive: x < -4 and 4 < x <
negative: x > 2, increasing:
-4 < x < 0, decreasing: < <
and x > 0; y → -- as x →
and y → to as x → -
2
-4
Х
-4
-2
9
T. positive: x < 1, negative: x
decreasing: for all real numb
-> -as y → to and
y → to as x ---
7
4
8
5
6
1
2.
3
10