Y=ax+b
a... slope
b... interception on the line y
you get the equation y=-1/2 *x + 12
Answer:
Sue of estimates = 6200
Step-by-step explanation:
can be estimated as
which is 
Similarly
can be estimated as
which is 
∴ Sum of estimates = 
Answer:
r = 1
Step-by-step explanation:
slope = change in y / change in x, so:
change in y / change in x = 2/3
5 - r / 7 - 1 = 2/3
5 - r / 6 = 2/3

now solve this equation.
first, multiply both sides by 6 to get rid of the fraction:

subtract 5 from both sides

multiply both sides by -1

Answer:
ted is right they gained yards
Step-by-step explanation:
becuase where it says +3 1/4 the + is the clue