Without Graphing, Decide:
(A) Are the Graphs of the Equations $\left\{ \begin{array} { r } 5 x - y = 26 \\x + 5 y = 26\end{array} \right.$

question 130

Multiple Choice

Without graphing, decide:
(a) Are the graphs of the equations are identical lines, parallel lines, or lines intersecting at a single point?
(b) How many solutions does the system have?
- $\left\{ \begin{array} { r } 5 x - y = 26 \\x + 5 y = 26\end{array} \right.$

• A) parallel lines; no solution
• B) lines intersecting at a single point; one solution
• C) identical lines; infinite number of solutions

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