A line passes through the points (-1,-5) and (4,5) . The point (a.1) is also on the line. what is the value of a?
1 answer:
Answer:
Step-by-step explanation:
Let's first find the slope of the line using the 2 given points. That is:
So the slope is 2. Let's write the equation of the line now, using one of the points. I'll use (4, 5) cuz I don't care much for negatives:
y - 5 = 2(x - 4) and
y - 5 = 2x - 8 and
y = 2x - 8 + 5 so
y = 2x - 3
Now that we know the equation of the line, we can sub in 1 for y to solve for a:
1 = 2x - 3 and
4 = 2x so
x (a) = 2
So a = 2 and the point is (2, 1)
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Step-by-step explanation:
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Answer:
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Step-by-step explanation:
Let the height of Chris be represented by , where
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