Me consider the system of equations. x-5y=2 3x-10y=11 (a) jamar rewrote the first equation as –2x + 10y = –4. what justification did he have for doing this? (b) jamar combined the equation in part (a) with the second equation in the system to get x = 7. explain jamar’s reasoning. (c) what is the solution of the system? (d) how do you know, without graphing, that the graph of 4x – 15y = 13 passes through the point whose coordinates are the solution of the system?

all teachers

step-by-step explanation:

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).