Answer: 11. (4,0) 13. (2,-2)
Step-by-step explanation:
11.
[tex]\displaystyle\\\left \{ {{y=\frac{1}{2} x+7 } \atop {y=\frac{3}{2}x+3 }} \right. \\\\y=\frac{1}{2}x+7[/tex]
x | 0 | 4 |
y | 7 | 9 |
[tex]\displaystyle\\y=\frac{3}{2}x+3\\[/tex]
x | 0 | 2 |
y | 3 | 6 |
13.
[tex]\displaystyle\\\left \{ {{y=x-4} \atop {y=-x}} \right. \\\\y=x-4[/tex]
x | 0 | 4 |
y | -4 | 0 |
[tex]y=-x[/tex]
x | 0 | 4 |
y | 0 | -4 |
