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marishachu [46]
3 years ago
5

Which linear function includes the points (3,9) and (-2,-11)

Mathematics
2 answers:
Murrr4er [49]3 years ago
7 0
General\ equation\ for\ line\ in\ slope\ intercept\ form:\\\\y=ax+b\\\\To\ find\ a\ and\ b\ substitude\ points\ (3,9),\ (-2,-11)\ into\ equation\\\\ \left \{ {{9=3a+b}\ \ \ \ \atop {-11=-2a+b\ |*-1}} \right.\\\\ \left \{ {{9=3a+b}\ \ \ \ \atop {11=2a-b}} \right.\\+----\\\\Addition\ method\\\\20=5a\ \ |:5\\\\a=4\\ b=9-3a\\b=9-3*4=9-12=-3\\\\Answer\ y=4x-3

Charra [1.4K]3 years ago
3 0
(2,1) is the answer
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2 years ago
Right triangle FHG is shown. The sine of angle F is 0.53. What is the cosine of Angle h ?
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<u>Given</u>:

Given that FGH is a right triangle. The sine of angle F is 0.53.

We need to determine the cosine of angle H.

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This can be written as,

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