The slope-point form of line:

We have the points (-9, 7) and (6, 2). Substitute:

The slope-intercept form of line:
.
We have the slope m:

Pu the coordinates of the point (6, 2) to the equation:

<em>add 2 to both sides</em>


If an equation is in absolute value symbols, the answer is always positive. So this equation has no real solution.
Answer:
The height of the dog house = 4 feet.
Step-by-step explanation:
Given:
The shape of the dog house is like a tent.
The slant heights of the house is 5 feet.
The bottom of the house is 6 feet across.
To find the height of the dog house at its tallest point.
Solution:
On drawing the figure of the dog house in the shape of a tent, we find out that the tallest point would be at the midpoint of the bottom of the house.
Thus, we ave a right triangle, of which one leg =
and hypotenuse = 
<em>Applying Pythagorean theorem to find the measure of the other leg which is the height of the house.</em>

Plugging in values.


Subtracting both sides by 9.


Taking square root both sides.


Thus, the height of the dog house = 4 feet.
Here, Time = Distance / speed
Substitute your known values,
t = 266 miles / 76 mph
t = 3.5 hours
In short, Your Answer would be: 3.5 Hours
Hope this helps!