Example
Paolo is going to take part in a 20-kilometer walk.
He makes this graph to show the relationship
between time and remaining distance if he
maintains his planned speed. Write an equation
for this function.
Make a table to
xo123 45
find the slope and
y 2016 12 8 40
the y-intercept.
Distance
Remaining (km)
0
1
2 3 4 5
Time (hr)
The table shows that when x = 0, y = 20, so the y-intercept is
20. As each x-coordinate increases by 1, each y-coordinate
decreases by 4, so the slope is 4, or-4.
The equation is y = - 4x + 20.

1 What do the y-intercept and the slope mean in the
context of the example problem?

unless if u could do my questions, if not i wouldn't want to

c

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560