Elementary Algebra Practice Exam Solutions #17-19
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Lesson Summary:
In this Elementary Algebra practice exam, students will learn how to write the equation of a line using the point slope formula, solve a system of equations using substitution or addition method, and check their answers by plugging in the obtained values back into the original equations. The solutions to each of the exam questions are clearly explained and demonstrated, making it a great resource for students studying Elementary Algebra.
Lesson Description:
These are solutions to a Practice Test made for my online Elementary Algebra class.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com
Questions answered by this video:
- Where can I find Algebra practice exam problem questions and answers?
- How do you write the equation of a line that passes through (6, -2) and has a slope of -2/3 using the point-slope form of an equation?
- What is the point-slope form of an equation and how do you use it?
- How can you check to make sure that you wrote the correct equation of a line that passes through a point and has a given slope?
- How do you solve a system of equations using substitution?
- How do you solve the system of equations 2x - 3y = -13 and y = 2x + 7 using substitution?
- If you find x using substitution in a system of equations, how do you find what y equals?
- How can you check your solution to a system of equations?
- How do you solve a system of equations using the elimination or addition method?
- How do you solve the system of equations 5x - 4y = 19 and 3x + 2y = 7 using elimination?
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Staff Review
This lesson goes through some example problems from a practice Algebra exam. Each step in the problems is shown clearly. The topics covered in this video are writing an equation of a line in point-slope form that passes through a point and has a given slope, and solving / checking systems of equations using substitution and elimination.
