
### Instruction: help me answer this question Find equation of the line perpendicular to the line x – 7y + 5 = 0 and having x intercept 3., think step by step
### Assistant: The given line has a slope of 1/7. Slope of a line perpendicular to a given line with slope m is -1/m. So the line having slope -7 and x intercept 3 has an equation of y = m(x – d) where d is the x intercept. Substituting the given slope and x intercept, we get the required equation. , The answer is 7x + y = 21
