The x-intercept is when the y-coordinate is equal to zero. To find the x-intercept, we set y = 0 and solve for x:
5x + 4(0) = 80
5x = 80
x = 16
So the x-intercept is 16.
The y-intercept is when the x-coordinate is equal to zero. To find the y-intercept, we set x = 0 and solve for y:
5(0) + 4y = 80
4y = 80
y = 20
So the y-intercept is 20.
Therefore, the correct answer is:
x-intercept is 16; y-intercept is 20.