It is A maybe use your calculator
Average speed = total miles / total time
= (16+24)/(2+2)
=40/4= 10mph
Y - 3x = -8
y = 3x - 8...slope here is 3. A perpendicular line will have a negative reciprocal slope. All that means is " flip " the slope and change the sign. So the slope we need is -1/3.
y = mx + b
slope(m) = -1/3
(3,2)...x = 3 and y = 2
now we sub and find b, the y int
2 = -1/3(3) + b
2 = -1 + b
2 + 1 = b
3 = b
so ur perpendicular equation is : y = -1/3x + 3
P=2
3p-1=5p-5-14+4p
3p-1=9p-19
-1=6p-19
18=6p
p=2
