Answer:
Hello!!
For question twelve,
is an identity.
For question thirteen,
has no solution.
Hope this helps!!
Answer:
-7 is the answer!! :) hope this helps
The slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.
Step-by-step explanation:
If the line is passing through two points (x1, y1) and (X2, y2). The slope (m) can be calculated using following formula.

In this case,
x1 = 5
x2 = 7
y1 = 80
y2 = 65
By putting the values in formula, we get


or
m = -7.5
Therefore, the slope of a trend line that passes through the points (5, 80) and (7, 65) is -7.5.
Learn more:
The following links have more information about slope
brainly.com/question/2586096
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Keywords: slope
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Answer:(–4.5, –2.5)
(4.5, 6)
(1.3, 3.5)
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
subtract b from both sides
divide by x