02 Apr MA 104 Midterm Examination MA 104 Midterm Examination
MA 104 Midterm Examination
MA 104 Midterm Examination Name____________________________
1. Describe in your own words the meaning of the term linear model.
2. List all the elements of B that are elements of the given set.
, 4
1
0
B 7, 8, 18, 0, Integers
3. Convert the mixed number to an improper fraction.
8
3 5 =
4. Convert the improper fraction to a mixed number.
5
34
=
Perform the indicated operation. Where possible, reduce the answer to its lowest terms.
5.
9
7
∙
6
1
=
6.
12
5
7
1
=
7.
2
1
7
5
=
8. Express the rational number as a decimal.
8
7
=
9. Find the absolute value.
∣-17∣ =
10. Perform the indicated subtraction.
12 – ( -5) =
11. Perform the indicated multiplication.
(- 32)(-1) =
12. Evaluate the exponential expression.
52 =
13. Evaluate the following expression.
14. Simplify
15. Express the decimal as a percent.
0.33 =
16. Express the percent as a decimal.
14% =
17. What number is 4% of 200?
18. Solve: The formula P = 0.45x – 69 describes profit for a certain vendor when the vendor
sells x pretzels. Evaluate the algebraic expression when x = 1000 to find the profit that the
vendor makes from selling 1000 pretzels.
19. Evaluate the expression for a = – 6, b = – 2, c = 5
20. Find the slope passing through the points (3, -8) and (5, -2). State whether the line is
increasing, decreasing, horizontal or vertical.
21. Determine the slope and y-intercept of the equation below.
22. Determine whether the below listed pair of lines is parallel, perpendicular, or neither.
23. Let y be the cooking time of a turkey that weighs x pounds. A model of the situation is:
y = 0.24x + 1.64. Estimate the cooking time of a 19-pound turkey.
24. Determine whether the ordered pair is a solution of the given equation.
( -3, 2) y = x + 5
25. Use the graph to identify the x- and y- intercepts or state that there is no x- or y-intercept.
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