emma3985 emma3985
  • 23-09-2019
  • Mathematics
contestada

determain weather (3,-5) lies in the graph of y= -3x+4

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jdoe0001 jdoe0001
  • 23-09-2019

let's check then

[tex]\bf y = -3x+4~\hspace{7em} (3~,~-5)~~ \begin{cases} x = 3\\ y = -5 \end{cases}\implies ~\hfill \stackrel{y}{-5}~=~-3(\stackrel{x}{3})+4 \\\\\\ -5=-9+4\implies -5=-5\leftarrow \textit{is that true? yeap}\textit{ \large \checkmark}[/tex]

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