Asked by MOLY
The angle of inclination of a line passing through (4,5) and (a,-5) is 45°. Find the value of a.
Answers
Answered by
Reiny
Did you know that the slope of a line equals the tangent of the angle that the line makes with the x-axis ?
so tan45° = 1
so we know the slope of the line is 1
(-5-5)/(a-4) = 1
a - 4 = -10
a = -6
Check with a quick sketch of the situation.
so tan45° = 1
so we know the slope of the line is 1
(-5-5)/(a-4) = 1
a - 4 = -10
a = -6
Check with a quick sketch of the situation.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.