Write the equation of the line that passes through the points (2,−8) and (1,7). put your answer in fully reduced point-slope form.

y = -15 + 22

Step-by-step explanation:

slope (m):

(y1 - y2)/(x1 - x2)

7 - (-8) / 1 - 2

15 / -1

m = -15

point slope formula:

y - y1 = -15(x - x1)

y - 7 = -15(x - 1)

y - 7 = -15x + 15

y = -15x + 22

none of the option is correct.

step-by-step explanation:

it says to find which expression equals 9^3 sqrt 10 = ?

9^3 sqrt 10 = 729 sqrt 10.

checking option a. 5 sqrt 10 + 4 sqrt 10

5 sqrt 10 + 4 sqrt 10

= 9 sqrt 10.

checking option b. 5^3 sqrt 10 + 4^3 sqrt 10

5^3 sqrt 10 + 4^3 sqrt 10

= 125 sqrt 10 + 64 sqrt 10

= 189 sqrt 10.

checking option c. 5 sqrt 10 + 4^3 sqrt 10

5 sqrt 10 + 4^3 sqrt 10

= 5 sqrt 10 + 64 sqrt 10

= 69 sqrt 10.

checking option d. 5^3 sqrt 10 + 4 sqrt 10

5^3 sqrt 10 + 4 sqrt 10

= 125 sqrt 10 + 4 sqrt 10

= 129 sqrt 10.

hence, none of the option is correct.