Step-by-step explanation:
The answer for that question is 17.9.
Answers:
The domain of the graph is {-3, -1, 1, 4}. The range of the graph is {-4, -1, 1, 4}
The domain of the set of ordered pairs is {-4, -3, 1}. The range of the set of ordered pairs is {1, 3, 4}
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Recall that the domain is the set of allowed x values. All we do is list the unique x coordinates of each point which are -3, -1, 1 and 4. The range is the set of y values so we just list the unique y coordinates of each point which are -4, -1, 1 and 4.
The same will happen with the other problem as well. The set of points listed is pretty much identical to the first problem, but the points haven't been graphed, but instead their coordinates have been listed out. The first coordinate is the x coordinate. The second coordinate is the y coordinate. Each point is in the form (x,y).
A) Measurement of People's Left foot (in inches):
30, 34, 35, 38, 40
Measurement of People's forearm (in inches):
14, 17, 18, 21, 23
b) My Two points = (30, 14) & (34, 17)
Rate of change, m = y2-y1/x2-x1
m = 17 - 14 / 34 - 30
m = 3 / 4
c) In order to form an equation, take any point, let say (14, 30)
y - y1 = m(x - x1)
y - 30 = 3/4 (x - 14)
y - 30 = 3x/4 - 10.5
y = 3x/4 + 19.5
Where, y = Length of left foot
x = Length of forearm
When x = 17 ft, it would be:
y = 3(17) / 4 + 19.5
y = 12.75 + 19.5
y = 32.25 Ft
Hope this helps!
