Answer:
The temperature decreased by 32 degrees.
Step-by-step explanation:
Answer:
Point-Slope form: 
standard form: 
Step-by-step explanation:
The standard form is given by: 
The point-slope form is given by: 
- <em>Let's call
as point
, and</em>
<em>point
as point
</em>
- <em>We also know that the slope
is given by
</em>
Let's find the slope:

1. So, point slope form can be written as:

2. Rearranging this equation and bringing all x's and y's to one side and the number to another side will give us the standard form. So:

<em>But A, B, and C (standard form) needs to be integers, so to get rid of the denominator , we multiply the whole equation by 15. So we have:</em>

<em>We can factor out a 3, so it becomes:</em>

So standard form is 
Answer:
<em>- 4</em>
Step-by-step explanation:
Formula of slope:
m = (
-
) / (
-
)
m = [8 - ( - 4)] / (4 - 7) = (8 + 4) / ( - 3) = <em>- 4</em>
Answer:
the answer is actualy 12
Step-by-step explanation:
Answer:
8x² + 6x - 35
Step-by-step explanation:
A = (2x + 5)(4x - 7)
Front: 2x * 4x = <em>8x²</em>
Outside: 2x * (-7) = <em>-14x</em>
Inside: 5 * 4x = <em>20x</em>
Last: 5 * -7 = <em>-35</em>
Add up: <em>8x² - 14x + 20x -35</em>
Simplify: 8x² + 6x - 35