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27.01.2021 •
Mathematics
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Ответ:
1 x 10^10
2 x 10^-10
7 x 10^-11
8 x 10^-11
Step-by-step explanation:
Ответ:
y < -4x + 3
Step-by-step explanation:
First you need to use the given coordinates to write an inequality in slope intercept form.
(1,-1) and (2,-5) now use the the given coordinates to find the slope.
The slope is the difference in the y values divided by the differences in the x values.
-1 - (-5) = 4
1-2 = -1
4/-1 = -4 The slope is -4 now find the y intercept. By using the formula
y = mx +b but after you are done you would have to switch the equal to sign to and inequality sign.
Plot in the x and y coordinates in the formula and the slope to solve for b.
-1=-4(1) +b
-1 = -4 +b
+4 +4
b = 3
So now we know that in slope-intercept form,the equation will be y = -4x + 3
But now we have to determine the inequality sign.
Since the line is a dashed line that means the the sign has to be > or < this is because we are not including the numbers that lies on the line.
The painted side of the graph means that all those numbers are a set of solutions to the graph and we can see they are all underneath the line so the graph will be y < -4x + 3