Graph the line that passes through the points (1,-9) and (1,-3) and determine the equation of the line
1 answer:
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Answer:
208°
Step-by-step explanation:
The equations above are all in the format 
, where 
= the gradient, or slope.
So, in the first question,
, the gradient would be 4, because 4 is in this equation (the number before the 
).
The gradient of a line perpendicular to this line is equal to the negative reciprocal of the gradient of the line. A better way to explain it is if = the gradient of the line and <u />
= the gradient of the perpendicular line then:
So in the first question, the gradient of the perpendicular line is
.
So, in the first question,
The gradient of a line perpendicular to this line is equal to the negative reciprocal of the gradient of the line. A better way to explain it is if
So in the first question, the gradient of the perpendicular line is