Need ! the slope of the line below is 2 !

The answer is B for sure, I assume!

Hey there!

The answers here are given in a really, really useful formula called point-slope form. It's exactly what it sounds like- you need a point on the line and the slope to write the formula, and from there you can convert it to slope intercept or standard forms.

It's written in this form:

y - y1 = m(x-x1)

Where m means the slope and y1 is the y value and x1 is the x value of the point. You keep the x and y there. That means, with a point of (3, 10) and a slope of 2, we have:

y - 10 = 2(x - 3)

Your answer is B :)

Hope this helps!

In this problem it decreased 20%