4 units down => y - 4
3 units left => x - 3
=> C
I would assume it would take 3.5 hours to mow the lawn together.
(2,2.8)(4,5.6)
slope = (5.6 - 2.8) / (4 - 2) = 2.8/2 = 1.4
y = mx + b
slope(m) = 1.4
use either point (2,2.8)...x = 2 and y = 2.8
now we sub and find b, the y int
2.8 = 1.4(2) + b
2.8 = 2.8 + b
2.8 - 2.8 = b
0 = b
so ur equation is : y = 1.4x + 0..or just y = 1.4x
Multiply the two probabilities together to get the answer. 3/10 ×8/10 = 24/100 or 24 %