What does 2×+3y=6 look like if it was plotted as a point on a graf

In the field of thermodynamics, rankine is the unit used to measure temperature. one can convert temperature from celsius into rankine using the formula c= r/1.8 - 273, what is the temperature in celcius corresponding to r degrees rankine.

What is the reflection image of (5,-3) across the line y = -x?

Give all possible names for the line shown.calculation tip: lines can be written with either point first.