To find the approximate length of a reptile with a mass of 20.5 grams, we can substitute the mass (y) into the equation and solve for the length (x).
y = 0.3x - 2
Substitute y = 20.5 into the equation:
20.5 = 0.3x - 2
Add 2 to both sides:
22.5 = 0.3x
Divide both sides by 0.3:
x = 22.5 / 0.3
x = 75
Therefore, the approximate length of a reptile with a mass of 20.5 grams is 75 centimeters. Answer choice D.
A biologist measured the length and mass of 20 reptiles. The equation y equals 0.3 x minus 2 is the line of best fit for the data, where x is the length, in centimeters, and y is the mass, in grams.
Based on the equation, what is the approximate length of a reptile that has a mass of 20.5 grams?
Answer options with 4 options
A.
62 centimeters
B.
66 centimeters
C.
70 centimeters
D.
75 centimeters
1 answer