Answer:
-21
Step-by-step explanation:
3x7=21 and a negative x a positive is always negative
Answer:
The equation for the following graph:
Step-by-step explanation:
- You first need to find the slope by using the <u>slope formula</u>:
(where 
is the first point and 
is the second point)
-Use the given points 
and 
from the graph for the formula:
Then, you solve:
After you have found the slope, use the slope 
and the first point for the <u>point-slope formula:</u>
<u>(</u>where 
is the slope and 
is the first point)
Then, you solve:
So, the equation for the following graph is .
Answer:
4) 2
Step-by-step explanation:
(4-0) / (1-(-1)) = 4/2 = 2
(10-4) / (4-1) = 6/3 = 2
Answer:
y=2x+1
Step-by-step explanation:
To find the answer, first graph the equation and find coordinates for atleast 2 points. We can find (0,7) and (1,9). Next we add 3 to the x coordinate of each point. We get (3,7) and (4,9). We know the slope which is 2. So our equation becomes y=2x+b. Next we substitube a coordinate pair, with y and x in the equation. We get 7=2*3+b. Solve and we get 1=b.
Therefore,
y=2x+1.
I hope this helps.
