Question

2. What is the slope of the graph of 4x + 5y = 10?

Answer 1

-4/5

Explanation:

1. put it in y = mx + b form

5y = -4x + 10

2. isolate the y, by dividing by 5

y = -4/5x + 2

3. identify the slope [ also known as m ]

-4/5

Answer 2

-0.8 or -4/5

Explanation:

You could do this a couple of ways. If you wanted to change your equation into slope-intercept form to make it easier for you, then you can do as follows:

4x + 5y = 10

5y = -4x + 10

y = -4/5x + 2

So your slope is -4/5.

Or you could do -A/B when your equation is in standard form. A is the term in front of the x value and B is the term in front of the y. Both strategies give you -4/5 for the slope.