simmonss1185
22.08.2019 •
Mathematics
Find the slope of the line(s) passing through the given points. then tell whether the line(s) rises, falls, is horizontal, or is vertical.
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Ответ:
21) falls
22) vertical
23) rises
24) rises
25) falls
26) horizontal
27) rises
28) horizontal
29) falls
Step-by-step explanation:
We shall use the slope formula to calculate the slopes of the line passing through each pair of point.
21: (3,1), (2,6)
The slope is
.
A negative slope means this line falls
22) (-2,5), (-2,4)
The slope is = undefined
An undefined slope means this line is vertical
23) The given point is (0,8) (2,10)
The slope is
A positive slope means this line rises
24) The points are (-3,-3), (3,1)
The slope is
A positive slope means this line rises
25) The points are: (5,0) (6,-2)
Slope:
A negative slope means this line falls
26) The points are (-2,-8) , (5,-8).
Slope:
A zero slope means this line is horizontal
27) The points are: (-1,2) , (5,3)
Slope:
A positive slope means this line rises
28) The points are: , (-1,4)
Slope:
A zero slope means the line is horizontal
29) The points are:
Slope:
A negative slope means this line falls.
Ответ:
this can be solve by linear equation
first is solve the slope
a. m = (y2-y1) / (x2 – x1)
m = (4.4 – 2.2)/ (11- 5.5) = 0.4 lap per min
b. kailee can run 0.4 lap per minute
c. y = mx + b
4.4 = (0.4)(11) + b
B = 0
Y= 0.4x
Y = 0.4(24)
Y= 9.6 lap can kailee run for 24 min