Answer:
Step-by-step explanation:
<u>According to data in the table we see pairs of points:</u>
<u>This gives us the rate of change:</u>
- (125 - 75)/(5 - 3) = 50/2 = 25
<u>The y - intercept is zero:</u>
- 75 = 3*25 + b
- 75 = 75 + b
- b = 0
<u>The line is:</u>
This is the line on the graph B
<u>Note.</u> <em>Its not clear what is needed regarding the table on the bottom</em>
Answer:
rise over run
Step-by-step explanation:
you look at the distance between the 2 points by looking at how many points its goes up or down, and you look at how points it goes from the left to the right or vice versa. but if you don't have a graph to look at, you will want to use the slope formula. look up the slope formula and plug it in.
General equation of parabola
for vertex(h,k)
Now
![\\ \rm\Rrightarrow y=a(x+2)^2+6](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5CRrightarrow%20y%3Da%28x%2B2%29%5E2%2B6)
![\\ \rm\Rrightarrow -3=a(1+2)^2+6](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5CRrightarrow%20-3%3Da%281%2B2%29%5E2%2B6)
![\\ \rm\Rrightarrow -9=a(3)^2](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5CRrightarrow%20-9%3Da%283%29%5E2)
![\\ \rm\Rrightarrow -9=9a](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5CRrightarrow%20-9%3D9a)
![\\ \rm\Rrightarrow a=-1](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5CRrightarrow%20a%3D-1)
So
equation of parabola
![\\ \rm\Rrightarrow y=-(x+2)^2+6](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5CRrightarrow%20y%3D-%28x%2B2%29%5E2%2B6)
Expanded form:
1 × 100,000,000
+ 5 × 10,000,000
+ 4 × 1,000,000
+ 7 × 100,000
+ 9 × 10,000
+ 8 × 1,000
+ 1 × 100
+ 0 × 10
+ 5 × 1
I hope it helps :)
Answer:
10
Step-by-step explanation:
5+5=10