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Can you glance over this paper quickly to see if it looks generally right? I dont need any in depth answers just a quick glance in case something is obviously wrong

Can you glance over this paper quickly to see if it looks generally right I dont need any in depth answers just a quick glance in case something is obviously wr class=

Respuesta :

The equations:

[tex]\begin{gathered} x+y=7\rightarrow y=-x+7 \\ x-y=9\rightarrow y=x-9 \end{gathered}[/tex]

Are perpendicular, because their slopes are reciprocals inverts of each other.

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