Find the inclination of a line.

4. the line 3x+5y=8

5. the line joining (-1,2) and (4,1)

the answers are

4. 149 degrees
5. 14 degrees

can someone explain how to do this question?

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?