To get the x-intercept, we simply set y = 0 and solve for "x".

now, we have the slope and the y-intercept, well, let's plug those two in the slope-intercept form, reason why is called that anyway,

$\bf y=\stackrel{slope}{-\cfrac{1}{2}}x\stackrel{y-intercept}{-2}\implies 0=-\cfrac{x}{2}-2\implies \cfrac{x}{2}=-2\implies x=-4$

5 0

3 years ago

Problem 2-11 (Algorithmic) Let A be an event that a person's primary method of transportation to and from work is an automobile

dangina [55]

The events are mutually exclusive, because your primary method can't be both a driving a car or taking a bus.

Since they are exclusive, the probability of the "or" clause is the sum of the probabilities:

$P(A\lor B)=P(A)+P(B)=0.48+0.32=0.8$

Since a person primarily takes a bus with probability 0.32, the opposite happens with probability

$1-P(B) = 1-0.32=0.68$

7 0

3 years ago