To solve for R you use PEMDAS
The input is the x-coordinate and the output is the y-coordinate. If the input is 4, plug 4 into the x variable to find the output, y.
y=3(4)-5
y=12-5
y=7
The output is 7.
Can you let me know when you get the answer?
Hell ya this question sucks its interest is 14% mark me brainlyiest
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