Question

Amber monitors a weather station. She records an initial temperature at midnight of 4 Fahrenheit. She finds that the temperature rises at the rate of 2 Fahrenheit per hour. Which graph shows the temperature as a function of hours since her initial reading?

Answer 1

It is given that the initial temperature at midnight is 4 fahrenheit and also temperature rises at the rate of 2 Fahrenheit per hour.

The equation formed is

$y=2x+4$

The coordinates are

$(0,4),(3,10)$

Then the graph obtained in option A is correct.