Which relation below represents a one to one function

Step-by-step explanation:

One-to-one function is a function that preserves distinctness: it never maps distinct elements of its domain to the same element of its codomain. Every element of the function's domain is the image of at most one element of its domain.

First table:

No. Because for x = 12 and x = 14 we have the same value of y = 197

Second table:

No. Because for x = -2 and x = 2 we have the same value of y = 5

Third table:

No. Because for x = 7.25 and x = 8.5 we have the same value of y = 11

irrational, cannot

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.