Y=9x+3 and x+9y=4 perpdencular or barrel

If we write a line in the form

Then the coefficient m is the slope of the line.

Two lines and are:

The first line is already in the required form: . We deduce that its slope is 9.

Let's rewrite the second line in the required form:

So, its slope is -1/9.

9 and -1/9 are obviously not equal, so the lines are not parallel.

But their product is -1, which means that the lines are perpendicular.

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )