I think the answer is (1, -3). Good luck!!!
Answer: I think the Sales tax is 0.5 because 0.5 X 3 is 1.5, He paid $24 in total for the books so you would do 24 + 1.5 and get 25.50, So it would have to be 0.5 sales tax for one book. Sorry about my English.
Answer:
creo que sería un 72-613:818 :D espero que te allá ayudado ekisde bueno es una materia particular así que esa sería la respuesta espero que te allá ayudado
X² + x - 20
= (x+5)(x-4)
x + 5 = 0
x = -5
x - 4 = 0
x = 4
hence the answer is C
To find the slope use the rate of change in y/the rate of change in x or you can use y2-y1/x2-x1
Use this website to help you.
http://www.coolmath.com/precalculus-review-calculus-intro/precalculus-algebra/01-graphing-slopes-of-lines-01