the variable a would be 4
Hello!
X and Y intercepts are found when graphing an equation. You know the X and Y intercepts by when a point crosses the X axis, and for the Y intercept, when a point crosses the Y axis.
First off we must simplify the equation.
4y + 12 = -2x - 12
Here is the photo of the graph attached.
By looking at the graph we can see the answer is...
X intercept = (-12,0)
Y intercept = (0,-6)
<span>the y-intercept will be

</span>the standard line equation is y = mx + b, where y is the y point, x is the x point, m is the slope, and b is the y-intercept.
to get the y intercept, we need to transform into the line equation, and caculate out b.
3x + 5y = 8
so 5y = 8 -3x
then y = <span>

- <span>

x
which means that <span>

= the y intercept.</span></span></span>
Approximately 6 hours and 18 minutes