Write an equation in slope-intercept form for the line with slope 4 and y-intercept -6

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

Me d is also an option but i couldn't get it in the picture

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?