Answer:
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Step-by-step explanation:
These points that are given show that the points that are the middle of the data are (4,6) (7,2) and (5,5) and this means that the line of best fit would go through all three of these data points from 9 on the x-axis to 10 on the y-axis.
Since base angles of an isosceles triangle are congruent the other base angle is also 65. since the three angles together sum to 180 thst leaves 180-65-65=180-130 = 50 degrees for the vertex angle
Here is your answer for the question.