Answer:
A. y=-1/3x+10
Step-by-step explanation:
Perpendicular gradients(slopes) are negative reciprocals so
m=-1/3 then use the point (6,8) to find the equation of the line
y=mx+b
8=(-1/3)(6)+b
8=-2+b
b=10
y=-1/3x+10
Follow the method of rise over run and a is your answer
F(x) = 3x+1
put x = a+h
f(a+h) = 3(a+h) + 1
f(a+h) = 3a + 3h + 1
put x = a
f(a) = 3a + 1
f(a+h)-f(a) = 3a + 3h + 1 -(3a+1)
f(a+h)-f(a) = 3a +3h + 1 - 3a -1
f(a+h)-f(a) = 3h
Arc Length = radius * Angle in radians
Arc Length = 27.4 *
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<span>
<span>
5.4977871438
</span>
</span>
</span>
Arc Length =
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<span>
<span>
150.6393677396
</span>
</span>
</span>
inches
Source:
http://www.1728.org/radians.htm
