Which situation can match the given inequality?
1 answer:
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The slope of the line that passes through the points (2,5) and (-1,5) is 0: it is an horizontal line, because both points have the same y-coordinate. The equation of the line is y=5.
For any two points (x1,y1), (x2,y2), the slope, m, of the line that passes through them can be calculated with:
where
represent the increment on the y direction and the increment on the x direction, respectively.
This comes from the definition of "slope": the slope of a line tells you how much does the line grow in the vertical direction for every unit of advance in the x direction.
If you apply the formula to the points given, you get
.
For any two points (x1,y1), (x2,y2), the slope, m, of the line that passes through them can be calculated with:
where
This comes from the definition of "slope": the slope of a line tells you how much does the line grow in the vertical direction for every unit of advance in the x direction.
If you apply the formula to the points given, you get
The square root of 81 is 9, the square root of 100 is 10. 89 is between 81 and 100, therefore the square root of 89 must be between 9 and 10.