Question

ivan is preheating his oven before using it to bake. ivan wants to predict the final temperature after a minutes. he wrote the equation ( y = 40x + 79 ), where ( y ) represents the final temperature in degrees fahrenheit. what is the meaning of the ( y ) value when ( x = 1 )?
answer
the change in minutes for every change of one degree fahrenheit.
the rate of change in the ovens temperature over time.
the time when the ovens temperature is ( 0^{circ} ).
the ovens temperature after 1 minute.

Explanation:

Step1: Substitute \(x = 1\) into the equation

Given the equation \(y=40x + 79\), when \(x = 1\), we substitute \(x\) value into the equation.

$$y=40\times1+79$$

Step2: Calculate the value of \(y\)

$$y = 40+79=119$$

Since \(x\) represents the number of minutes and \(y\) represents the final temperature, when \(x = 1\), \(y\) is the oven's temperature after 1 minute.

Answer:

The oven's temperature after 1 minute.