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Unformatted text preview: _ x+ 1 2x yint = +3 (0, 3) y= yint = +3 y = 2x + 3 9
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1 5 CHAPTER 7 TEST REVIEW ANSWER KEY 13.) The sum of Anthony's age and his father's age is 53. The difference between their ages is 25. What are their ages? [Only an algebraic solution will be accepted.] Let x = father's age
y = Anthony's age x + y = 53
x  y = 25 x + y = 53
x  y = 25
2x = 78
2
2
x = 39 x + y = 53
(39) + y = 53
 39
 39
y = 14 Anthony is 14 years old and
his father is 39 years old. *These lines are parallel. They
have the same slope.*
How many solutions did this system No Solution
of equations have? ______________ y=6 1
6
m = yint = +5
1 x 9 8 7 6 5 4 3 2 1 0 1 2 3 4 5 6 7 8 9
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This document was uploaded on 03/19/2014 for the course MATH Integrated at Brewster High School.
 Fall '13
 MikeStrnatko
 Systems Of Equations, Equations

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