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7nadin3 [17]
3 years ago
13

A line passes through (4, 5) and (8, 9). Which equation best represents the line?

Mathematics
1 answer:
Lerok [7]3 years ago
3 0
We can calculate the slope of this line passing through (4,5) and (8,9) like this:
m = (y2 - y1)/(x2 - x1)
m = (9 - 5)/(8 - 4)
m = 4/4
m = 1
so the slope is 1, and now we can use the equation of one point and the slope to write the line's equation:
y - y1 = m(x - x1)
y - 5 = 1*(x - 4)
y - 5 = x - 4
y = x + 1
that is the equation of the line, its slope is 1 and the y-intercept is 1
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Answer:

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Step-by-step explanation:

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8 0
2 years ago
Read 2 more answers
Find the domain and range of the function graphed in the picture.
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To write this in interval notation, we would write (-\infty, 4] This interval starts at negative infinity and stops at 4. We exclude infinity with the curved parenthesis and include 4 with the square bracket.

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The range is the set of possible y outputs. Every point on this curve has a y coordinate that is either 0 or it is larger than 0.

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7 0
3 years ago
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Bezzdna [24]

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MA_775_DIABLO [31]
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A

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