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hiralpatel121
Group Title
Can someone please help me with the attached problems?
 2 years ago
 2 years ago
hiralpatel121 Group Title
Can someone please help me with the attached problems?
 2 years ago
 2 years ago

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JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
Hi again... what class is this for?
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Intermediate Algebra
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
I'm away from anything that I could quickly reference for the regression model it mentions...
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
You can consider part b for a moment though... Slope is how fast the ticket price seems to be increasing (or decreasing, but it appears to be going up here) each year. Just like slope says how much increase in y for each step of x
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
The regression model should give you the line expression, as I recall... so you could "plug in" 2013 to get part c. You need to consider each of the years as the time since 2000, so you end up with small numbers like 7, 8, etc, not big like 2007, etc. So you could plug in "13" to get part c
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
Okay, Anything else?
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
Do you have anything to go on for the linear regression method? Is it an Excel project, or something to calculate by hand, or any idea? It looks possible but time consuming to do manually.
 2 years ago

hiralpatel121 Group TitleBest ResponseYou've already chosen the best response.0
I have no idea actually. That's alright. I'll try it somehow. Can you help me with two more problems?
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
Maybe, gotta run in a minute, but I might be back on later. Give me one or both, I'll see...
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
So, for 2, "varies directly" means linearly, so it's like an equation of a line. W is a function of S, but you don't know the slope or how MUCH it varies. so W(S) is proportional to S, or W(S) = mS + b, where m is the unknown slope and b is the unknown intercept
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
oh, wait... they use k as the constant, and they ignore the intercept So, it's W(S) = kS
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
So, sub in the values they give you for W and S in part (b) and solve for the k term. In (c), rewrite the W(S) function using the actual constant k from part (b) and sub in S=175 as given
 2 years ago

JakeV8 Group TitleBest ResponseYou've already chosen the best response.1
The other problem just looks like a little basic simplifying of one equation, then some graphing on the calculator. Also, maybe your calculator has a linear regression tool built in that could help on that first one... something where you enter the years (remember, 7, 8, 9, etc not 2007, etc) and the ticket prices and it produces the regression model which is the expression for the line. Something to look for, maybe...
 2 years ago
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