So the equation of a line is y=mx + b.
In order to find the slope given only two coordinates we have to use a formula to find slope. It is:
y2-y1/x2-x1.
So let’s get all the values first from (3,4) and (2,-1).
y2= -1
y1=4
x2=2
x1=3
Plug in the values now.
-1 - 4 = -5
-5/2-3=5
The slope is 5x.
Now let’s find the y intercept, to find the y intercept, we have to do a formula which is:
y-y1=m(x-x1)
So let’s plug in the values.
y-4=5(x-3)
y-4=5x-15
+4 +4
y=5x-11
The final answer is y=5x-11!!!
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Answer:
The number they would count is 
Step-by-step explanation:
One mole is equal to 6.02214076x10^23 particles. In order to know the number counted by every human on Earth we simply multiply the number of humans times the count a "good counter" can achieve, 4x10^9x7.44x10^9 (for USA, change to 4x10^12 if you use de British English definition). Thus:

Answer:
5, -5
Step-by-step explanation:
well 5-5 is 0 so that's it
:))))
You do 7 times 2 in parentheses and then minus that by 6-4 in parentheses so it will look like this , (7times2) - (6-4) = 12