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Secondary 1 | Maths
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Pls help with question c ASAP
Date Posted: 4 years ago
Views: 286
This is a linear graph, so the equation of the line is going to be in the form of y = mx + b, where m represents the slope (rise / run) and b represents the y-intercept.
The y-intercept is 1, as the line PQ cuts the y-axis at the point (0,1).
The slope is calculated using rise / run, let's calculate both the rise and the run using the points we have available, being point P and point Q. To get from point P to point Q, we have to move vertically by 6 units (4 - - 2), so the rise is 6. We also have to move horizontally by 10 units
(5 - - 5). Hence, the slope is 6 / 10, which can be simplified as 3 / 5.
So, the equation of line PQ is y = (3/5)x + 1
The y-intercept is 1, as the line PQ cuts the y-axis at the point (0,1).
The slope is calculated using rise / run, let's calculate both the rise and the run using the points we have available, being point P and point Q. To get from point P to point Q, we have to move vertically by 6 units (4 - - 2), so the rise is 6. We also have to move horizontally by 10 units
(5 - - 5). Hence, the slope is 6 / 10, which can be simplified as 3 / 5.
So, the equation of line PQ is y = (3/5)x + 1
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done
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Hope this helps!
Date Posted:
4 years ago
done
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I hope you understand :)
Date Posted:
4 years ago
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