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Question 937560: I have 5 questions and have put them all together. I would appreciate some help. Thank you kindly.
A. Find the rate of change for the ramp represented in the graph.
http://www.usatestprep.com/modules/gallery/files/8/869/869.png
B. What is the y-intercept of y = 2/sv + 2
C. Find the equation of the line.
http://www.usatestprep.com/modules/gallery/files/4/451/451.png
D.
A city had population 67,255 on January 1, 2000, and its population has been increasing by 2935 people each year since then. A linear model for the population P, where t is in years after 2000, is
a. P(T) = 2935t
b. P(t) = 67225t
c. P(t) = 2935 + 67255t
d. P(t) = 67255 + 3955t
E. Write an equation of the line that has a slope of -2/3 and a y intercept of -2?
a. 2x + 3y = -6
b. 2x + 3y = 6
c. 2x - 3y = -6
d. 2x - 3y = 6
Answer by MathLover1(20849)   (Show Source):
You can put this solution on YOUR website! A.
points are: ( ,) ( , )
The slope of a line is a rate of change.
B. What is the y-intercept of 
the y-intercept is a point where x coordinate is zero: (, )
recall the slope-intercept form of linear equation  where  and 
compare it to and you see that y-intercept is  or at point (, )
C. Find the equation of the line.
points are: (, ) ( ,)
 plug in (,) and
D.
linear equation:
if a city had population  on January ,  means the constant value or 
and if its population has been increasing by  people each year since then:means  is rate of change or slope and  represents years
so,a linear model for the population  , where  is in years after , is:
answer: d. P(t) = 67255 + 3955t-> I believe this is mistake, should be 2935t
E. Write an equation of the line that has a slope of  and a  of  ?
linear equation where and
if  and  , we have
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