The equation is put in slope intercept form which is y=mx+b
The slope is m and in this case it is -1/2.
To find the y intercept substitute in 0
for x then solve.

Answer:
Initial temperature;
432.76
Common ratio;
-0.067
Equation;

Step-by-step explanation:
In this scenario, the time in minutes represents the independent variable x while the temperature of the pizza represents the dependent variable y.
The analysis is performed in Ms. Excel. The first step is to obtain a scatter plot of the data then finally inserting an exponential trend line to obtain the required equation.
The Ms. Excel output is shown in the attachment below. To obtain the initial temperature we substitute x = 0 in the equation. On the other hand, the common ratio is the exponent in the equation.
Answer: 27 dogs were seen at the clinic on monday.
27/45 = 0.6
0.6 = 60%
90 ÷ 2 is the same as 1/2 of 90.
Either way you get 45.
k = - 3
given k +
= 
subtract
from both sides of the equation
k =
-
= -
= - 3