Question

The instructor had saved $3,500 and rents an apartment for $275 monthly. He believes the point (6, 1850) would be on the equation of the line. Is he correct? Explain how to check if a point is on a line.

Answer 1

he starts with 3,500 and deducts 275 per month for rent

if we represent x as the # of months, then the $$$ he has left (y) can be modeled as

y = 3,500 - 275x
to check whether (6,1850) is a solution, simply plug in x = 6 and y = 1850 and see if both sides are equal or not