Answer:
a) <em>Slope of the line m = ∞</em>
<em>b) Slope of the line m =0</em>
Step-by-step explanation:
<u><em>Explanation:-</em></u>
<u><em>Step(i):-</em></u>
<em>Given points are ( 7,7) and (7,-8)</em>
<em>Slope of the line</em>
<em> </em>
<em />
<em> </em>
<em />
<em> m = ∞</em>
<u><em>Step(ii):-</em></u>
Given points are (-6,7) and (9,7)
<em>Slope of the line</em>
<em> </em>
<em />
<em> </em>
<em />
<em>Slope of the line m =0</em>
<span>In a 30-60-90 triangle the side opposite the 30 degree angle is half the length of the hypotenuse.
The short leg is </span>the side opposite the 30 degree angle. If the short leg =x, then the hypotenuse = 2x
The ratio of the short leg to the hypotenuse in the given triangle is cos(60°)

Answer is C. 1:2
The answer to this problem is 1/6.