a. Write the coordinates of any five points on the x -axis. What do these points have in common? b. Graph the points ( – 2 , 1 ) , ( 0 , 1 ) , . ( 0.5 , 1 ) , ( 1 , 1 ) , a n d ( 2 , 1 ) . Describe the set of all points of the form ( x , 1) , where x is a real number.
a. Write the coordinates of any five points on the x -axis. What do these points have in common? b. Graph the points ( – 2 , 1 ) , ( 0 , 1 ) , . ( 0.5 , 1 ) , ( 1 , 1 ) , a n d ( 2 , 1 ) . Describe the set of all points of the form ( x , 1) , where x is a real number.
Solution Summary: The author explains that the coordinates of five points on the x-axis have the same y-co-ordinates.
a. Write the coordinates of any five points on the x-axis. What do these points have in common?
b. Graph the points
(
–
2
,
1
)
,
(
0
,
1
)
,
.
(
0.5
,
1
)
,
(
1
,
1
)
,
a
n
d
(
2
,
1
)
. Describe the set of all points of the form (x, 1), where x is a real number.
3) If a is a positive number, what is the value of the following double integral?
2a
Love Lv
2ay-y²
.x2 + y2 dady
16. Solve each of the following equations for x.
(a) 42x+1 = 64
(b) 27-3815
(c) 92. 27² = 3-1
(d) log x + log(x - 21) = 2
(e) 3 = 14
(f) 2x+1 = 51-2x
11. Find the composition fog and gof for the following functions.
2
(a) f(x) = 2x+5, g(x) = x²
2
(b) f(x) = x²+x, g(x) = √√x
1
(c) f(x) = -1/2)
9
9(x) =
х
=
-
X
Chapter 1 Solutions
Precalculus: A Unit Circle Approach, Books a la Carte Edition plus MyMathLab with Pearson eText -- Access Card Package (2nd Edition)
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