A nurse starts at the hospital and travels to 5 appointments along a road. The positive numbers stand for going East. The negati
ve numbers stand for going West. Which expression gives the total number of miles he travels to get to these 5 appointments?
a.|6 + -9 + 3 1/2 + -6 1/4 + -3/4|
b.6 – 9 + 3 1/2 – 6 1/4 – 3/4
c.|6| + |-9| + |3 1/2| + |-6 1/4| + |-3/4|
d.|(+6) + (-9) + (3 1/2) + (-6 1/4) + (-3/4)|
a.|6 + -9 + 3 1/2 + -6 1/4 + -3/4|
b.6 – 9 + 3 1/2 – 6 1/4 – 3/4
c.|6| + |-9| + |3 1/2| + |-6 1/4| + |-3/4|
d.|(+6) + (-9) + (3 1/2) + (-6 1/4) + (-3/4)|
1 answer:
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Equation of a tangent line of a curve is:
y- y0 = f´ (x0) (x - x0 ). In this case: x0=1, y0=1
f´(x)=
(Derivation)
f´(x0)=
y - 1 = 1/2 ( x - 1 )
y - 1 = 1/2 x - 1/2
y = 1/2 x - 1/2 + 1
y =
y- y0 = f´ (x0) (x - x0 ). In this case: x0=1, y0=1
f´(x)=
f´(x0)=
y - 1 = 1/2 ( x - 1 )
y - 1 = 1/2 x - 1/2
y = 1/2 x - 1/2 + 1
y =