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ICE Princess25 [194]
3 years ago
11

The graph highlights two other points on the trend line. Use them to find another equation for the trend line shown for this sca

tter point.
A) Y=82x+998
B) Y=247.7x-335
C) Y=743x-1647

Mathematics
1 answer:
frutty [35]3 years ago
4 0

Option A:

The equation for the trend line is y = 82x + 998.

Solution:

The points on the line are (2, 1162) and (11, 1900).

Here, x_1=2, y_1=1162, x_2 = 11, y_2=1900

Slope of the line:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

$m=\frac{1900-1162}{11-2}

$m=\frac{738}{9}

m = 82

Point-slope formula:

y-y_{1}=m\left(x-x_{1}\right)

y-1162=82\left(x-2\right)

y-1162=82x-164

Add 1162 on both sides of the equation.

y=82x+998

The equation for the trend line is y = 82x + 998.

Hence Option A is the correct answer.

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