Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
It is 
because you should use 
then just plug it in using
(1, 4) and (-2, -2).
That eliminates everything except the second one and the third.
So now we would find the b in the equation 
and that's all
Answer:
0.6
Step-by-step explanation:
-0.2=s+(-0.8)
-0.2=s-0.8
-0.2+0.8=s
s=0.6
She walked .6 mph because 3/5 x 2= 6/10
1/2 x 2=1
Answer:
Line does not represent direct variation.
Step-by-step explanation:
If the line goes thru the origin, it represents direct variation. Otherwise it does not.
Start by finding the slope of this line:
As we move from (-4,3) to (4,3), x increases by 8 but y does not change. Thus, the slope is 0/8, or just 0. Thus, the equation of this line is y = 3, which does NOT go thru the origin; thus, the points given do NOT represent direct variation.
Answer: The probability for both is 1/2
Step-by-step explanation:
For A. The probability for who do or do not participate in some kind of sport is found by adding the students who do or do not. Which is 25 + 225 = 250
250 out of 500 simplified is 1/2
For B. The probability got who do and do not participate in some kind of sport is found by taking the number of students out of the whole number. Its 250 out of 500.
250 out of 500 is simplified to 1/2.
