Choose the correct slope of the line that passages through the points (1,-3) and (3, -5)

Step-by-step explanation:

Start by using the slope formula, which is :

y2 - y1 / x2 - x1

Now, get your two points and figure out which number will be your x1, x2, y1, and y1 values. (1,-3) will be your x1 and y1 values, because that point comes first in the question. (3,-5) will be your x2 and y2 values.

Put these values in the right order into your formula, like so,and then solve.

-5 - (-3) / 3 - 1

-5+3 / 2

-2 / 2

= -1

This is a slope of -1.

you didn't post any answer choices, so its not 100% clear what your teacher is looking for

however, log(15/7) is equivalent to log(15) - log(7)

i'm using the rule log(x/y) = log(x) - log(y)