Answer:
the slope(-10) (1) because --=+
First lets find the slope of the line that connects the two points.


Now use the slope and one of the points to write the equation for the line in point-slope form.




The horizontal distance between the two points is 14 - (-10) = 24. We are looking for the point one-third of the way from the first point, so divide 24 by 3. The point that is a third past the first given point is 8 past x = -10. So the point has an x value of -2.
Plug x = -2 into the equation.

The answer is (-2,-1).
Roberto overtakes Juanita at the rate of (7.7 mi)/(11 h) = 0.7 mi/h. This is the difference in their speeds. The sum of their speeds is (7.7 mi)/1 h) = 7.7 mi/h.
Roberto walks at the rate (7.7 + 0.7)/2 = 4.2 mi/h.
Juanita walks at the rate 4.2 - 0.7 = 3.5 mi/h.
_____
In a "sum and diference" problem, one solution is half the total of the sum and difference. If we let R and J be the respective speeds of Roberto and Juanita, we have
R + J = total speed
R - J = difference speed
Adding these two equations, we have
2R = (total speed + difference speed)
R = (total speed + difference speed)2 . . . . . as computed above
The value of x is 1/10
i hope this helps!
Add the prices together
Then divide by 3.
*6.25 + 3.25 = 9.50/3 = 2 of them pay 3.16 while the other pays 3.17.