1.8 is 72% of what number
1 answer:
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Answer:
(C)4
Step-by-step explanation:
Given the line:
The gradient of the line,
A line perpendicular to the given line will have a gradient, (by definition of perpendicularity).
Therefore, a perpendicular line that passes through the point (4,1) is:
Comparing with the slope-intercept form y=mx+x, the slope of the perpendicular line, b=4.