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Katyanochek1 [597]
3 years ago
12

A line includes the points (4,1) and (8, 2). What is its equation in slope-intercept form?

Mathematics
1 answer:
blsea [12.9K]3 years ago
7 0

Answer: y = 4x

Step-by-step explanation: Slope intercept form is y = mx + b where m is the slop and b is the x intercept

We can solve for slope using the given points

(2-1)/(8-4) = 1/4, thus m = 1/4

y = 1/4x +b

Now to solve for b, we can just plug in one of the points to see what makes b work

1 = 4*(1/4) + b

1 = 1 +b

b = 0

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Answer:


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Please enclose the fractional coefficient inside parentheses:  y= (1/2x) − 3 for greater clarity.

Make a table of ordered pairs:

x    y = (1/2)x - 3

0                   -3

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The y-intercept is the point at which x = 0, and (from the table) is -3.  Plot a dark dot at (0, -3).

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6 0
3 years ago
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Answer:

x = \sqrt{- 46}

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x^{2} - 18 + 64 = 0

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