3.4, #40. Given f(x) = int (2x),
a) find the domain of the function all real numbers
b) locate any intercepts y-int = (0,0), x-ints are all points between (0,0) and
1
( 2 ,0 )
c) graph the function
d) based on the graph, find the range all integers
int(2x
#69.
Maximum height of a Ball. The height s of a ball (in feet) thrown with an initial
velociity of 80 feet per second from an initial height of 6 feet is given as a function
of time t (in seconds) by s( t ) = -16t 2 + 80t + 6 .
a) Graph s.
b) Determine t
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College Algebra (Math 22) - Section 1530, Summer 2006
Completion of Math 20 with a grade of C or better
Fran Manion
MC 26
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2
,
x +1
a) Find the average rate of change from 1 to x,
b) Use the result from part (a) to compute the average rate of change from x = 1
to x = 2 and
c) Find an equation of the secant line containing (1,f(1) and (2,f(2).
#43. Given the function f ( x ) =
Main, 22 ~_ Test #5
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