Question

On the graph of the equation 5x – 2y = 20, what is the value of the y-intercept?

Answer 1

The slope-intercept form: y = mx + b

m - the slope
b - the y-intercept

5x - 2y = 20    |subtract 5x from both sides

-2y = -5x + 20    |divide both sides by (-2)

y = 2.5x - 10

Answer: The y-intercept b = -10 ⇒ (0;-10)