Asked by amazinggg
radius; another word for the bone that connects the elbow and wrist. don't get this confused with the radius of a circle, this has NOTHING to do with that...
A woman with an arm radius of 22 centimets long should be about 160 centimeters tall.
A woman with a radius of 26 centimeters long should be about 174 centimeters tall..
- Write a linear equation relating height (y) to the length of the radius (x).
A woman with an arm radius of 22 centimets long should be about 160 centimeters tall.
A woman with a radius of 26 centimeters long should be about 174 centimeters tall..
- Write a linear equation relating height (y) to the length of the radius (x).
Answers
Answered by
Damon
x = radius
y = height
(22,160)
(26,174)
(y-Y1)/(x-X1) = (Y2-Y1)/(X2-X1) (two ways of writing the slope of our line)
(y -160)/(x-22) = (14)/(4) = 7/2
2 y - 320 = 7 x - 154
2 y = 7 x + 166 done
------------------
check a point (22,160)
2 y = 7(22)+166
2 y = 320
y = 160 check
y = height
(22,160)
(26,174)
(y-Y1)/(x-X1) = (Y2-Y1)/(X2-X1) (two ways of writing the slope of our line)
(y -160)/(x-22) = (14)/(4) = 7/2
2 y - 320 = 7 x - 154
2 y = 7 x + 166 done
------------------
check a point (22,160)
2 y = 7(22)+166
2 y = 320
y = 160 check
Answered by
amazinggg
okay, but where is the linear equation?
Answered by
Damon
2 y = 7 x + 166 done
Right there
If you want y = mx + b divide both sides by 2
y = (7/2)x + 83
Right there
If you want y = mx + b divide both sides by 2
y = (7/2)x + 83
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