Question

Olivia is growing roses and keeps track of how much fertilizer (in ounces) she adds to the soil and how many blooms each rose bush has. She finds a linear relationship that can be modeled by the equation y = 1.345x + 4. When will Olivia only have 4 blooms?
A) When she adds no fertilizer.
B) Every bush will only have 4 blooms.
C) When she only adds 1 ounce of fertilizer.
D) It is not possible for her to only have 4 blooms.

Answer 1

Answer:

She needs to add no fertilizer, option A)

Step-by-step explanation:

Equation of a Line:

According to the conditions of the question, being x the ounces of fertilizer Olivia adds to the soil, and y the number of blooms each rose bush has, the relation between them is

$y = 1.345x + 4$

It's bee required to compute the value of x such that the roses have 4 blooms, thus

$1.345x + 4=4$

Solving for x

$1.345x=4-4=0$

$x=0$

This means she needs to add no fertilizer, option A)

Answer 2

Answer:

A)    When she adds no fertilizer.

Step-by-step explanation:

Since 4 is the y-intercept the x-value must be 0. This only happens when she adds no fertilizer..