Explore BrainMass
Share

Mathematics: Fundamental Algebra and Graphing

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

1. The cost, c, in dollars of a car rental is 10 + , where m is the number of miles driven. Graph the equation and use the graph to estimate the cost of car rental if the number of miles driven is 34.
A) About 24 dollars
B) About 15 dollars
C) About 36.5 dollars
D) About 19 dollars

2. Graph the two lines x + 2y = 6 and 5x + 2y = 18 on the same graph grid and complete the following parts:
a) Determine if the lines are perpendicular.
b) Determine if the lines are parallel.
c) Determine if the lines intersect at x = 3. If so, what is the value of y?

3. For tax purposes, businesses must keep track of the current values of each of their assets. A common mathematical model is to assume that the current value y is related to the age x of the asset by a linear equation. A moving company buys a 40-foot van with a useful lifetime of 5 years. After x months of use, the value y of the van is estimated by the linear equation:

y = 25,000 - 400x

a) Graph this linear equation.
b) Determine the value of the van after 5 years.
c) Determine when the value of the van will be $15,000

4. Solve the equation. Write answer in set-builder notation. Graph the solution set.

0.6x + 14 + x > 2x + 18 ? 0.5x

5. Solve the equation. Do not convert fractions to decimals.
19/18x + 1/18x = 8x + 1/9 + 17/18x

© BrainMass Inc. brainmass.com October 25, 2018, 8:05 am ad1c9bdddf
https://brainmass.com/math/basic-algebra/mathematics-fundamental-algebra-graphing-525665

Solution Preview

1.
Please see attachment titled "page1" for complete solution to question 1.

2.
Please see ...

Solution Summary

The expert graphs the estimated cost of car rentals if the number of miles driven is 34/

$2.19
See Also This Related BrainMass Solution

Objective-Based Evaluation of a Math Curriculum

Can you help me evaluate the math curriculum based on Tyler's objective based model?

This is the curriculum for 7th grade math.
http://www.ncpublicschools.org/curriculum/mathematics/scos/2003/k-8/35grade7

The rationale for using this approach is that it covers all aspects of the evaluation process. By following the seven steps of this process, the curriculum will be effectively evaluated. This objective-based approach to evaluation is at the core of what Tyler proposes.

His approach to evaluation followed these steps:

1. Establish broad goals or objectives.
2. Classify the goals or objectives.
3. Define objectives in behavioral terms.
4. Find situations in which achievement if objectives can be shown.
5. Develop or select measurement techniques.
6. Collect performance data.
7. Compare performance data with behaviorally stated objectives.

View Full Posting Details