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mestny [16]
3 years ago
12

Find y if the slope between (3, y) and (11, 15) is 1.

Mathematics
1 answer:
Wittaler [7]3 years ago
8 0

The slope is defined as

m=\dfrac{\Delta y}{\Delta x}=\dfrac{y_2-y_1}{x_2-x_1}

So, we have

m=1=\dfrac{15-y}{11-3} \iff \dfrac{15-y}{8}=1 \iff 15-y=8 \iff y=15-8=7

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