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OpenStudy (itrymath):
2nd one is 49
jimthompson5910 (jim_thompson5910):
how did you get that?
OpenStudy (itrymath):
jimthompson5910 (jim_thompson5910):
you're given f(x). What is f(1) equal to?
OpenStudy (itrymath):
35 actually
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jimthompson5910 (jim_thompson5910):
f(x) = 11*1.35^x
f(1) = 11*1.35^1
f(1) = ???
OpenStudy (itrymath):
14.85
jimthompson5910 (jim_thompson5910):
so (1,1.45) is one point on this curve
jimthompson5910 (jim_thompson5910):
what is f(5) equal to?
OpenStudy (itrymath):
49. something
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OpenStudy (itrymath):
49.32
jimthompson5910 (jim_thompson5910):
so (5, 49.3243678125) is another point on this line
jimthompson5910 (jim_thompson5910):
find the slope of the line through
(1,1.45)
and
(5, 49.3243678125)
OpenStudy (itrymath):
back sorry
jimthompson5910 (jim_thompson5910):
are you able to find the slope?
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OpenStudy (itrymath):
yes
OpenStudy (itrymath):
i got 4/47
OpenStudy (itrymath):
@jim_thompson5910 you there
jimthompson5910 (jim_thompson5910):
let me check
jimthompson5910 (jim_thompson5910):
you should get some decimal value. Did you use the slope formula?
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OpenStudy (itrymath):
11.75? or 0.08
jimthompson5910 (jim_thompson5910):
m = (y2 - y1)/(x2 - x1)
m = (49.3243678125 - 1.45)/(5 - 1) = ???
OpenStudy (itrymath):
4/47.87
jimthompson5910 (jim_thompson5910):
what is 49.3243678125 - 1.45 equal to?
OpenStudy (itrymath):
omg
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OpenStudy (itrymath):
i used midpoint formula
OpenStudy (itrymath):
-_-
jimthompson5910 (jim_thompson5910):
Slope Formula
\[\Large m = \frac{y_2 - y_1}{x_2 - x_1}\]
OpenStudy (itrymath):
I USED THAT
OpenStudy (itrymath):
-_-
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jimthompson5910 (jim_thompson5910):
Slope Formula
\[\Large m = \frac{y_2 - y_1}{x_2 - x_1}\]
\[\Large m \approx \frac{49.3243678125 - 1.45}{5-1}\]
\[\Large m \approx \frac{47.8743678125}{4}\]
\[\Large m \approx 11.968591953125\]
The slope is approximately 11.968591953125
OpenStudy (itrymath):
you gave me a set of points (1,1.45) (5,49.32)
OpenStudy (itrymath):
nvm you did it right and i did it wrong
OpenStudy (itrymath):
so whole number would be 12 right ?
jimthompson5910 (jim_thompson5910):
yes rounding 11.968591953125 to the nearest whole number leads to 12
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OpenStudy (itrymath):
wow well wouldnt have done it without you thanks!
OpenStudy (itrymath):
i got a few more question mind sticking around, ill make new post