Test 1
Math 1125
J. Special
Fall, 2006
Name:
Show all appropriate work. Circle your final answers.
x-3 -2 -1 0 1 2 3
f(x
)1 3 4 3 1 0.75 0.5
1. Based on the above table, evaluate the following:
a.
)0(f
b.
)2()2( ff
2. Given
12)(
2
xxxf
, find and simplify the following:
a.
)1(f
b.
)2(xf
3. Sketch the graph of
23 xy
. Make sure to label the x- and y-intercept and indicate the slope.
x- intercept:
y- intercept:
slope:
4. Decide which of the two given functions is linear and find its equation.
x0 3 6 10 15 Linear? (yes/no)
f(x) 0 3579
g(x
)
-1 5 11 19 29
Equation:
1
