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ibrahimuskalel
26.07.2019 •
Mathematics
Write the slope-intercept form of the line that passes through the points (6, 1) and (5, 4)
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Ответ:
First start by finding m, the slope. To find slope, use the equation:
where
Let's choose (6, 1) as your
Now you know the slope of your line that passes through the points is m=-3. Plug that into your slope-intercept equation:
y = -3x +b
Finally you want to find b. To find b, just plug in one of your coordinate points and solve for b. I'll use (6,1), but you can use either one!
Put b into your slope intercept equation to find your final equation of your line:
y = -3x + 19
The equation of your line is y = -3x + 19
Ответ:
exponential functions fit the template
y = a*b^x
where 'a' and b are fixed values
the value of 'a' is the y intercept. in this case, it is 100 since (0,100) is on the curve. this is the part where the graph crosses the y axis. so a = 100.
the value of b takes a bit of work to find. we'll plug a = 100, x = 1 and y = 50 into the equation shown above. why x = 1 and y = 50 you might ask? well the point (1,50) appears to be on the graph as well.
so plugging those three items into the equation leads to
y = a*b^x
50 = 100*b^1
50 = 100*b
50/100 = 100*b/100 divide both sides by 100
1/2 = b
b = 1/2
b = 0.5
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step-by-step explanation: