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?
-$\left\{ \begin{array} { l }
x + y = 7 \
x + y = 2
\end{array} \right.$
A) lines intersecting at a single point; one solution
B) identical lines; infinite number of solutions
C) parallel lines; no solution

Question

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?
-$\left\{ \begin{array} { l } 
x + y = 7 \
x + y = 2
\end{array} \right.$
A) lines intersecting at a single point; one solution
B) identical lines; infinite number of solutions
C) parallel lines; no solution

Quizplus · Accepted Answer

The Answer is C

Without Graphing, Decide: (A) Are the Graphs of the Equations {x+y=7x+y=2\left\{ \begin{array} { l } x + y = 7 \\x + y = 2\end{array} \right.{x+y=7x+y=2​

Without Graphing, Decide:
(A) Are the Graphs of the Equations $\left\{ \begin{array} { l } x + y = 7 \\x + y = 2\end{array} \right.$