Monique manages wildlife samples for ducks unlimited. two samples of duck populations at a migratory site are shown in the table below. which statement about the samples is true?

duck pond samples
sample 1
sample 2
mallard
17
mallard
21
wood duck
8
wood duck
7
green wing teal
10
green wing teal
8
american widgeon
5
american widgeon
6
monique can use both samples to find the mean frequency of each duck.
monique should take another sample because there is too much variability in the two samples.
monique should use only the first sample to find the mean frequency of each duck.
monique should use only the second sample to find the mean frequency of each duck.

Monique can use both samples to find the mean frequency of each duck.

A.

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form

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step-by-step explanation: