Many students seem puzzled by function notation well after it has been introduced, and ask “why can’t we just write
y = 3x instead of
f(x) = 3x ?”. To motivate the use of function notation and improve understanding, I advocate using multi-variable functions instead of single-variable functions in introducing this notation. My introduction usually proceeds something like this:
Step-by-step explanation:
Answer:
A. 15
B. 16
C. 21
Step-by-step explanation:
A. ((3x5)/2)x2 = 15
B. ((4x2)/2)x4 = 16
C. 5x5 - 2x2 = 21
Mid point formula
(x1 + x2) , (y1+y2)
--------- --------
2 2
Thus for x it would be (6+(-2)) /2 or 4/2 or 2.
For y (-4 + 4) / 2 or 0 / 2 or 0.
Mid point is (2,0)
Answer:
d=25/13
Step-by-step explanation:
Answer:
-2
Step-by-step explanation: