Distance between (-1,2) (7,8)

10

Step-by-step explanation: In this problem, we're asked to find the distance between the points (-1,2) and (7,8) so we use the distance formula which states that the distance between two points is equal to

.

Our first point, (-1,2) represents (, ) and our second point,

(7,8) represents (, ).

So, plugging the given information into the formula, we have.

Next, we simplify inside the parentheses to get.

Next, 8² is 64 and 6² is 36 so we have or which is 10.

So the distance between the points (-1,2) and (7,8) is 10.

the answer is d

step-by-step explanation:

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !