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Troyanec [42]
3 years ago
7

what is the y intercept of the line with a slope of - 4/7 that also passes through the point (7 , - 7/2) ?

Mathematics
1 answer:
kondor19780726 [428]3 years ago
8 0

The answer is the last option: \frac{1}{2}

Explanation:

1. You have that the equation of the line is:

y=mx+b

Where m is the slope of the line and b is the intercept with the y-axis.

2. Therefore, you must find b.

3. Then, you must substitute the points given in the problem and the slope into the equation of the line and solve for b, as following:

y=mx+b\\-\frac{7}{2}=(-\frac{4}{7})(7)+b\\-\frac{7}{2}=-4+b\\b=\frac{1}{2}

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