Write an equation for the line that ppasses through (3,5) and (3,9). is the line parallel or perpendicular to the x-axis? What is the slope of the lin x=3 perpendicular

y=9 perpendicular

x=3 parallel

y=5 parallel
PLEASE HEL

For a school science project, john noted the temperature at the same time every day for one week. the high temperature for the week was 27°f, and the low temperature for the week was −3°f. what is the difference between the high and low temperatures john recorded?