Answer:

Step-by-step explanation:
From coordinate geometry we know that, slope is ratio of vertical change rise and the horizontal change run.
Mathematically,

Putting the given values,



Answer: 1)
2)
3) 13, 4) 10.
Step-by-step explanation:
Since we have given that

So, we need to find :
1) a + b is given by

2) 2a+3b is given by

3) |a| is given by

4) |a-b| is given by

Hence, 1)
2)
3) 13, 4) 10.
Answer:
Step-by-step explanation:
Answer:
Your answer would be

And

Step-by-step explanation:
Hope this helps. If I am wrong, REPORT ME PLEASE.
The relationship is not proportional because the boys and girls are in different grades and they are in different activities.