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 one year ago
The scatter plot below shows the weights in ounces of several kittens at various ages. What is the best equation of the trend line through these points?
A.
y = 10x
B.
y = 4x
C. y = 1/4x + 10
y = 4x + 10
 one year ago
The scatter plot below shows the weights in ounces of several kittens at various ages. What is the best equation of the trend line through these points? A. y = 10x B. y = 4x C. y = 1/4x + 10 y = 4x + 10

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mathmate
 one year ago
Best ResponseYou've already chosen the best response.1This is how you proceed for slopeintercept equations. From the graph, read off the yintercept (=10). Read off the slope (about 15). Check the 4 options to see which one satisfies both conditions. If you can use help reading off the slope and intercept, please post.

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Are you familiar with how to find the yintercept of a given equation in slopeintercept form?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1An equation y=mx+b is in slopeintercept form, where m=slope and b=yintercept. dw:1357747417191:dw

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1From the given graph, can you spot the yintercept?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1no. Yintercept is where the curve (line in this case) intersects the yaxis. Can you read it off?

jayda
 one year ago
Best ResponseYou've already chosen the best response.0so the y intercept is where you have the curved line?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1dw:1357748329385:dw Can you figure out the yintercept of the given graph?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1can you do the rest now?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1What is the approximate slope and what is the intercept?

jayda
 one year ago
Best ResponseYou've already chosen the best response.0isnt the intercept 10 though?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Right, yintercept is 10. Did you find the slope?

mathmate
 one year ago
Best ResponseYou've already chosen the best response.1Your answer D is correct. You have eliminated A and B because the yintercepts there are zero. Good job. Between C and D, the difference is the slope. The graph shows that y increases from 10 to 14 between 0 and 1. This implies a slope of (1410)/(10)=4. Therefore answer D is correct.
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