Please help! John-Mark recorded the stats for several baseball pitchers. He made a scatterplot showing the
1 answer:
Answer: Third Option
Step-by-step explanation:
The equation of a line in the pending intersection form has the following form:
Where m is the slope of the line and b is the intersection with the y axis.
Observe in the graph that the data form a decreasing line. Then the adjustment line must have a negative slope .
The first and the second option have positive slopes, therefore we discard them.
Notice in the scatter diagram that the intersection of the line with the y-axis (x = 0) is above 90.
The line of the fourth option has a value of .
Therefore the line that best fits the data is the third option
Note that the line has a slope and a value of
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se see vertex is (1,-4)
y=a(x-1)^2-4
find a
another point is (4,-2)
-2=a(4-1)^2-4
-2=a(3)^2-4
-2=9a-4
add 4
2=9a
divide b 9
2/9=a