A biologists measured the length and mass of 20 reptiles. The equation y=0.3x-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 reptile that has a mass of 20.5 grams?

my computer is slow i can not see it sorry

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)