Transcript Chapter 1 Review

Chapter 1 Review 
Super duper, SUPER fun!
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Warm Up:
1. Given the parametric equations:
Find the inverse (in parametric).
2. Solve the equation cos x = 2
2
xt
ye
t 1
No Calculator
• Write an equation for a line through (-1, 2)
and perpendicular to y = ½x + 5.
y  2  2( x  1)
Composite Functions – No Calc
f ( g ( x)) 
x
g ( f ( x))  x
Yes, because f(g(x)) = g(f(x)) = x.
No Calculator
1
cos x  
2
2 4
x
,
3 3
NO CALCULATOR!
• Write an equation for
the line with the given
table values:
x
-2
2
4
f(x)
4
2
1
1
SAMPLE : y  2   ( x  2)
2
Solve for x:
-0.2x
e
x  6.931
=4
Investments
• If Mikey invests $1500 in a retirement
account that earns 8% compounded
annually, how long will it take this single
payment to grow to $5000?
5000  1500(1.08)
x  15.643 years
x
Free Response Practice
Free Response Practice
(answers)
•
•
•
•
A) D: x > 3 and x < -3
B) x = 3 and x = -3
C) y = 1
D)  4, 4   6, 6 

7 
6
4

27
7
2
27 