Find the slope
5x+2y=20
I don't get what the formula is
The slope of Ax+By=C is -A/B
This is because you can rearrange things, as in your case, to
5x+2y = 20
2y = -5x + 20
y = -5/2 x + 10
This is the slope-intercept form, and you can easily see that the slope is -5/2.
To find the slope of a linear equation in the form y = mx + b, where m is the slope, we first need to rearrange the equation into slope-intercept form. The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.
Given the equation 5x + 2y = 20, let's isolate y by moving the 5x term to the right side of the equation:
2y = -5x + 20
Now, divide each term by 2 to solve for y:
y = (-5/2)x + 10
Comparing this equation to the slope-intercept form y = mx + b, we can see that the slope (m) of the equation is -5/2. Thus, the slope of the equation 5x + 2y = 20 is -5/2.