Aseedling tree grows steadily at a rate of 4 cm per day. which of the following formulas can be the one describing how the height of this tree, h (in cm), depends on the number of days that passed, d?
(a) h=4d (b) h=−4d+50 (c) h=4d+50 (d) h=4d−50

(A) h=4d

Step-by-step explanation:

Given is :

A seedling tree grows steadily at a rate of 4 cm per day.

This can be simplified like- on day 1 it grows 4 cm, on day 2 it grows 8 cm, on day 3 it grows 12 cm and so on...

So, the equation that describes how the height of this tree, h (in cm), depends on the number of days that passed, d is :

h=4d  (where d is number of days and 4 is the constant rate of growth)

C) h = 4d + 50

Step-by-step explanation:

The question did not include the starting height of the tree but based on the answer choices it was 50 cm. I checked and C) is the correct answer.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!