Answer:
y = 2x - 7
Step-by-step explanation:
To find the line equation we assume that its form is y = m*x + b. Where m is the slope and b is the independent variable that intercepts the Y axis.
If we have two points as P1=(x1,y1) and P2=(x2,y2) we can use the slope formula as:
m = (y2-y1)/(x2-x1)
The points given are P1=(7,7) and P2=(2,-3), then the using the slope formula we obtain:
m = (-3-7)/(2-7)
m = (-10)/(-5)
m = 2
By now the equation is y = 2x + b. To find the value of b we have to replace in the equation any point, in this case i am using P2:
-3 = 2*(2) + b
-3 = 4 + b
-3 -4 = b
-7 = b
Therefore the equation of the line is:
y = 2x - 7
Answer:
Step-by-step explanation:
Let's rewrite the equation as:
Now, let's find its derivate:
Let's evaluate x=0.27 and x=2:
Keep in mind that when we derivate A(average speed) we find the average acceleration, thats why the result is given in mi/h^2, also it explains the minus sign, because for every stop you make on the trip you are decelerating.
Answer:
(9-9x) - (3-x)
Step-by-step explanation:
(4x2 -9x +1) - (5x2 -x -7)
4x2+1= 9. 5x2-7= 3
(9-9x) - ( 3-x)
Answer:
20ft per minute
Step-by-step explanation:
