Mercer County Community College MAT146 PRECALC Prof. Porter's Practice Midterm
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Formulas:
P=Qe^{RT}
P=Q(1+R/N)^{NT}
^{ }_______________________________________________________________________________________________________
= =
2 
0.1 
















1 
0.9 
















0 
2.2 
















1 
3.1 
















2 
4.0 














































a.) Plot the data points on the graph 





2 














1 








b.) Draw a line of best fit on the 



2 
1 
0 
1 
2 






Graph above: that is, draw a 





1 








Straight line which comes as close 





2 








As possible to all the data points 














(this is also called the regression 














Line). 














c.) Use the calculator to give the equation of the regression 













Regression:_______________________
Vertical:
Horizontal:
Vertical:
Horizontal:
Find the asymptotes:
Vertical:
Horizontal:
Find the intercepts.
xintercepts:
yintercepts:
Give a qualitative graph for the entire function. Show the asymptotes and intercepts.
State the Domain _______________ State the Range ________________
State the asymptote _____________ State the yintercept _____________
ANSWER:____________________
Use the inverse to help find the xintercept in the problem .
Give your answer to TWO DECIMAL PLACES
ANSWER:____________________
State the Domain _______________ State the Range ________________
State the asymptote _____________ State the yintercept _____________
State the xintercept _____________
Determine the rate of decay “r”
Rate:____________
What is the half life (in years)?
Halflife:_________
What do you estimate the level of radiation to be in 2000?
How much money would I have if I invested $1000 in each account for two years?
Bank A:____________________
Bank B:____________________
How could I earn the most on my $2000 ?
ANSWER:____________________
ANSWER:____________________
Suppose log_{3}2 = .6, without a calculator how could you find log_{3}(18) or log_{3}(2 x 3^{2})?
ANSWER:____________________
ANSWER:____________________
ANSWER:____________________
(leave the equation in point slope or slope intercept form)
Answer:_________________________
Find and simplify:
Answer:_________________________
If the volume is given by the equation V = x (400  2x) ( 30  2x)
Give a qualitative graph of the function:
What is the degree of the polynomial function?______________
How many faces could any polynomial of that degree have?_______________________________
Can there be only one complex root? Why?___________________________________________
Find (f o g)(1).
(f o g)(1)_________________________
What is the domain for (f + g ) (x) ?
Domain:___________________
Find g^{1}(x)
g^{1}(x) = _________________________
Find (g o g^{1})(10^{100})
(g o g^{1})( 10^{100})._________________________