Question
Question: The equation of the line whose slope is 3 and which cuts off an intercept 3 from the positive x-axis...
The equation of the line whose slope is 3 and which cuts off an intercept 3 from the positive x-axis, is-
A
y = 3x –9
B
y = 3x + 3
C
y = 3x + 9
D
None of these
Answer
y = 3x –9
Explanation
Solution
(x1, y1) = (3, 0)
m = 3
\ equation
y – y1 = m(x –x1)
y – 0 = 3 (x –3)
Ž 3x – y – 9 = 0