The system of equations y=-3x+1/2 and y= 1/5x-1 and 4/5 is shown on the graph below. What is a reasonable estimate for the solut
ion?
A. (0.7, -1.7)
B. (-1.7, 0,7)
C. (1.4, -3.3)
D. (-3.3, 1.4)
A. (0.7, -1.7)
B. (-1.7, 0,7)
C. (1.4, -3.3)
D. (-3.3, 1.4)
2 answers:
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Answer:
(B) Time (min) 2 , 3 , 7 , 9
Temperature (°C) 60.6 , 64.3 , 79.1 , 86.5
Step-by-step explanation:
The rate of change is found by using the formula for slope:
For option A, this gives us
m =(64.4-61.0)/(3-2) = 3.4/1 = 3.4
This is not more than relationship A.
For option B, we have
(64.3-60.6)/(3-2) = 3.7/1 = 3.7
This is more than relationship A.
For option C, we have
(65.3-61.8)/(3-2) = 3.5/1 = 3.5
This is not more than relationship A.
For option D, we have
(64.6-61.0)/(3-2) = 3.6/1 = 3.6
This is not more than relationship A.