book Maths Puzzle Numerical Ability

Find the equation of the line passing through the points (-3,8) and (-4,-5)

A) y=13x-47
B) y=13x+47
C) y=13x-31
D) y= -13x-31

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book Other Question
If Sin B = .8192 and B lies in the second quadrant, find cos B and sin 2B by using sin^2x + cos^2x = 1 solve.

b^2 -12b+32=0