i would say c is the best answer or the 3rd one
(1,2)(4,-1)
slope = (y2 - y1) / (x2 - x1)
slope = (-1 - 2) / (4 - 1) = -3/3 = -1
the slope is -1......I am not sure of the mistake.....unless she just added (-1 - 2) and got 3 instead of -3.......or when dividing -3/3....she maybe forgot about the negative sign
Y=4x-21 I’m pretty sure is the answrr.
Answer:
120 books
Step-by-step explanation:
57 + 3 = 60
60 x 2 = 120