Question

Write the equation of a line that passes through the point (1,-3) and is parallel to the line 7x + y = -5.

Answer 1

If its parallel to the line y= -7x-5 it means that the slope is the same of that line.

All you need to do now is to find the y- axis intersection.


Now putting it into numbers: If two lines are parallel, the slope has the same value (-7)

You also know that it needs to pass through point (1,-3)

then:


y = -7x +b
-3 = -7*1 + b (point (1,-3)

b= 4


then you equation is y = -7x + 4