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Serga [27]
3 years ago
8

A line passes through (3, 7) and (6, 9). Which equation best represents the line?

Mathematics
2 answers:
sp2606 [1]3 years ago
8 0
The name is the second option y= (2/3)x +5. Hope this helps

Sidana [21]3 years ago
8 0
Let's recall the equation to find out the slope of a line:

\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Next, we substitute our given values into the equation, and simplify:

\frac{9-7}{6-3}=\frac{2}{3}

Now, we insert the slope (2/3) into the y=mx+b equation and substitute the values from one of the coordinates to find what b, the y-intercept is:

y=\frac{2}{3}x+c \\ 7=\frac{2}{3}(3)+c \\ 7=2+c \\ c=5

So, the y-intercept is 5. We can now put our discovered values for the slope and the y-intercept into one equation:

y=\frac{2}{3}x+5

The answer is B.
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