Most graphing calculators will do weighted averages pretty easily. It is mostly a matter of data entry.
mx = -2
my = 10
(x, y) = (mx, my)/10 = (-0.2, 1)
mx = -2
my = 10
(x, y) = (mx, my)/10 = (-0.2, 1)
An accounting machine operator wanted to divide an 85-minute job between two identical machines so that one machine would take o
ne and a half times as long as the other. how much time (in minutes) was taken by the machine doing the longer job?
1 answer:
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1. Let A(a,b) be a point in the coordinate axis. The reflection of A with respect to the x-axis is the point A'(a, -b).
2. So the reflection of C(6, 4) is C'(6, -4)
3. Remark, a picture is always helpful when dealing with reflections.
2. So the reflection of C(6, 4) is C'(6, -4)
3. Remark, a picture is always helpful when dealing with reflections.