3 years ago

Which equation is shown on the graph?

1 answer:

4 0

$y=mx+b\\\\A(0;\ 2);\ B(-2;\ 0)\\\\for\ x=2\to y=2\\\\substitute:m\cdot0+b=2\to b=2\\\\y=mx+2\\\\for\ x=-2\to y=0\\\\substitute:-2m+2=0\to-2m=-2\ \ \ /:(-2)\to m=1\\\\Answer:y=x+2\ (B)$

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