find the slope for 4x-y=0

Question

what is the slope for 4x-y=0

 

Answer 1

For this problem all you do is get the y by itself, and look at the number in front of the x to get the slope. 

 

For example, in the problem 3x-y=0:

 

3x-y=0 (subtract 4x from both sides)

-y=-3x (now multiply by a negative one on both sides)

y=3x 

 

since the number in front of the x value is 3, the slope is 3. 

Answer 2

The slope formula for an equation is y=mx+b; where m = slope and b = y-intercept.  Therefore, you take your equation 4x-y=0 and solve for y. 

 

4x-y=0 - add y to both sides you will get 4x=y. Now, write the equation in standard form y = 4x +0.  As you can see, the equation is in the same form as y = mx + b. The slope of this equation is 4.