8. On December 24th, 2019 the high temperature for the day was The low temperature was -11°F. What was the total temperature
change for the day? Use a diagram or expression to explain your
thinking. Be clear and complete!

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

60: 45 =12: 9 =4: 3 so the answer is 4: 3