Answer:
Step-by-step explanation:
29
Answer:
y = - x + 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = 
with (x₁, y₁ ) = (- 2, 5) and (x₂, y₂ ) = (4, - 1)
m =
=
= - 1, thus
y = - x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (4, - 1 ), then
- 1 = - 4 + c ⇒ c = - 1 + 4 = 3
y = - x + 3 ← equation of line
As given,
Step 1: Pick any three-digit counting number
Lets pick the number 643
Step 2: Reverse the digits of the original number.
So, reverse becomes 346
Now, it says that the difference of these two numbers has a tens digit of 9.
Lets, check:

So, its true that the difference has a tens digit of 9.
Another example:
Lets take 449
So reverse is = 944
Difference = 
Here also the tens digit is 9.
So, the condition applies to all 3 digit numbers.
Answer:
A omo
because she ran off the way around the track