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3 years ago

11

Okay so I have having a little problem with slope- intercept form when you have two points. Help?

1 answer:

Ira Lisetskai [31]3 years ago

3 0

To find the slope of the line you have to do change in y over the change in x. I will be using the example (3,6) and (1,4). So if you find the change in y over the change in x you have 2/2. The slope would be 1. and if you have slope intercept form (y=mx+b) you get y=1x+b. Now all you have to find is b. Substitute in any of the points given and you have 4=1+b. Therefore b = 3. So your full equation is: y=x+3

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Answer:

Part 1) $c=21.9\ units$

Part 2) $B=61.1\°$

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Step-by-step explanation:

step 1

Find the length side c

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$c^{2}=a^{2}+b^{2}$

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step 2

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we know that

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substitute the given values

$tan(B)=19.2/10.6$

$B=arctan(19.2/10.6)=61.1\°$

step 3

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The measure of interior angles in a triangle must be equal to 180 degrees

so

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Remember that in a right triangle the measure of angle C is 90 degrees

we have

$B=61.1\°$

$C=90\°$

substitute

$A+61.1\°+90\°=180\°$

$A=28.9\°$

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