The slope can be calculated by subtracting the y values (the rises) and dividing the difference by the difference between the x values (the runs) to get rise over run. -1-4= -5 (differences in y's) & 5-(-2)= 7 (the differences in the x's). now divide the difference in the y' by the difference in the x's to get m= -5/7.
I believe it is the third one. I hope this helps :)
False, Fractions are rational numbers.
It just depends on how much tax is where you live so for where I live tax is 7 cents for every dollar so if we do 66x7 we would get 462 cents and that all adds up to 4 dollars and 62 cents, enjoy.