The two-way frequency table shows data on accidents in the last year for drivers who took a driver
safety course.
Driver Safety
Course
No Driver Safety
Course
Total
28
35
63
Accident within
the last year
No Accident
within the last
year
Total
97
104
201
125
139
264
Given that a driver took the driver safety course, what is the chance that the driver still got in an
accident? Round your answer to the nearest whole number.

60

step-by-step explanation:

you can't solve x because it is 2 linear equation and you only have one equation

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1