The slope-intercept form<span> is simply the way of writing the equation of a line so that the </span>slope<span> </span><span>Often, this </span>form<span> is called y = mx + b
</span>form<span>.</span>
Answer:
cost of 5 story book=800
cost of 1 story book=800/5
=160
how many. book can be bought on rs.1400
=1400/160
=8.75
Step-by-step explanation:
=
Answer:
<em>The products did cost $173.9 in 2010</em>
Step-by-step explanation:
<u>Exponential function</u>
Two variables y and x are related as an exponential function if they comply:
![F=Cr^{kx}](https://tex.z-dn.net/?f=F%3DCr%5E%7Bkx%7D)
where C is the initial value of F, r is the ratio, and k is a proportional constant.
The situation described in the question is modeled as
![F=Cr^{n}](https://tex.z-dn.net/?f=F%3DCr%5E%7Bn%7D)
Where F is the final value of the cart of groceries in 2010, C = $150 is its value in 2005, r is the yearly rate of increase. n is the number of years
. So
![F=150\ 1.03^{n}](https://tex.z-dn.net/?f=F%3D150%5C%201.03%5E%7Bn%7D)
If we set n=5 (from 2005 to 2010):
![F=150\ 1.03^{5}](https://tex.z-dn.net/?f=F%3D150%5C%201.03%5E%7B5%7D)
![F=\$173.9](https://tex.z-dn.net/?f=F%3D%5C%24173.9)
The products did cost $173.9 in 2010
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