1. Solve: In the equation 2x - y = -9, x represents the fare in pesos when riding a jeepney and y is the number of additional kilometers travelled after travelling 4 kilometers. How
much is the additional fare for every kilometer travelled after travelling 4 kilometers?
Hint:
Transform the equation to slope-intercept form then identify its slope(m) because slope
expresses the rate of change in the fare for every kilometers travelled.