a.
the point where the lines appear to intersect on the graph.
a.
Answer to Problem 32E
The required answer is: point of intersection is
Explanation of Solution
Given information:
The graphs of two linear equations are shown.
Calculation:
The two lines
b.
whether the system of linear equations can be solved by substitution to check
The answer in part (a)
b.
Answer to Problem 32E
The required answer: Yes, the system of linear equations can be solved by substitution
Explanation of Solution
Given information:
The linear equations:
Calculation:
Solving the linear equations using substitution:
Equation 1 is already solved for y
Substitute
(Subtract 6 from both sides)
(Multiply 4 on both sides)
(Add x on both sides)
(Add 20 on both sides)
(Divide 5 on both sides)
(Simplify)
Substitute 4 for x in equation 1 and solve for y
(Simplify)
Therefore the system of linear equations can be solved by substitution to check the answer in part (a) that is the solution (4, 5) matches with the answer of part (a)
Chapter 5 Solutions
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