Answer:
y= -5x + 30 and this means that the temperature starts at 30 degrees (y-intercept) and it goes down 5 degrees C/minute (slope)
Step-by-step explanation:
The line starts at (0,30) which is your y-intercept.
The slope is RISE/RUN = 30-20/0-2= 10/-2=-5 degrees per minute.
