The answer would be 13x+6.
(7x+14)+(6x-8)
Combine like terms to get 13x+6
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slope = difference in y/difference in x
Substitute the values in:
slope = (4-2)/(5--3)
Simplify:
2/8
Simplify to give the answer:
slope = 1/4
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Answer: 1. What are the focus and directrix of a parabola? Parabolas are commonly known as the graphs of quadratic functions. They can also be viewed as the set of all points whose distance from a certain point (the focus) is equal to their distance from a certain line (the directrix).
2.The center-radius form is: (x−h)2+(y−k)2=r2 Here, the center point is denoted by (h,k) and r is the radius of the circle.
Step-by-step explanation:
The average rate of change for a function over an interval is the slope
<h3>How to explain the steps?</h3>
Take for instance, we have the function to be
Function f(x)
And the interval is (a,b)
The average rate of change for the function over the interval is
Rate = (f(b) - f(a))/(b - a)
The above represents the slope
Take for instance, we have:
f(x) = x^2 [2, 4]
We have:
f(2) = 2^2 = 4
f(4) = 4^2 = 16
So, we have:
Rate = (16 - 4)/(4 - 2)
Rate = 6
Read more about average rate of change at:
brainly.com/question/8728504
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Answer:
$117
Step-by-step explanation:
580x3=1,740
619x3=1857
1857-1740=117
So you would save $117 online.
