Slope = (10-1)/(1+2) = 9/3 = 3
y = mx + b
1 = 3(-2) +b
1 = -6 + b
b = 7
equation
y = 3x + 7
or
3x - y = -7
answer is <span>3x − y = −7 (first choice)</span>
by dy/dx, we'll be assuming that "y" is encapsulating a function, a function in terms of "x".

To find the answer to that, you have to see how many numbers are between 13 and 31. There are 18 numbers between 13 and 31. Divide 18 by 2 and you will get the number halfway. 9 is halfway between 13 and 31. So, add 9 to 13 and you get 22.
The answer is 22.
Hope I helped
Answer:
-7
Step-by-step explanation:
Answer:
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<u>Explanation</u>
Separate the values with the variables and add them together, the same case for those without the variables.