Can i write an equation in point-slope form when having a slope of zero?

Arrange these numbers from least to greatest 3/5 5/7 2/9

What is the equation of the graph below? y=sec(x)-4

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)