F= {(6, 3), (5, 4), (4, 5), (3, 6), (2, 7)} is f a function and why?
yes, no two ordered pairs in this list has the same first element.
yes, no two ordered pairs in this list has the same second element.
yes, there is more than one ordered pair in this list.
no, there is a limited number of ordered pairs in this list.

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b

the weight of the object inside the box!