Mat 190 Test 1 Worksheet With Answers - 2008
ADVERTISEMENT
1
2Test 1
MAT 190
Summer 2008
Name ____________________________
Simplify all answers and show your work!
1. “f(x)” is another name for __y__.
2. The domain of a relation tells what values _x_ can be.
3. What number can we not divide by? __0__. 4. The range of a relation tells what values __ y__ can be.
5. What numbers can we not take the square root of in the real numbers? ___negative numbers___
6. In a word problem, the “average rate of change” is the same as the _slope__ and the starting point is
the same as the ___y-intercept____.
7. Write “f(-2) = –8” as an ordered pair. _(-2, -8)__
8. Given U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, A = {1, 2, 4, 5, 9} and B = {2, 3, 4, 6, 7}, find the following:
a) Draw the Venn diagram
b)
A ∩
B
c)
A ∪
B
that represents the sets.
see diagram
{2, 4}
{1, 2, 3, 4, 5, 6, 7, 9}
9. Given the relation {(3, 1), (1, -4), (-2, -5), (-5, 6)}, find the following:
a) Domain: _{3, 1, -2, -5}_
b) Range: ___{1, -4, -5, 6}____
c) Maximum of x-values: __3__
d) Minimum of x-values: __-5___
e) Maximum of y-values: __6__
f) Minimum of y-values: __-5___
g) Make a line graph of the relation on the grid to the right.
see graph
10. Is the relation {(3, 5), (4, 8), (-3, 5), (2.1, 6)} a function? Why or why not? _Yes. Each x-value in the
relation maps to a different y-value.
1
11. Graph the line given by y =
− x + 4
12. Find the slope of the following lines:
3
a)
y
=
−
5
−
. 7
x 2
m = -7.2
x
y
-6
6
-3
5
b)
( f
) x
=
7
x
−
1
4 .
m = 7
0
4
3
3
6
2
4
c) 4x – 3y = 13
m =
3
see graph
d) Passing through (2, 5) and (-1, 0).
5
m =
3
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education