Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Question 218824: Hi, I am having trouble coming up with the answer to this word problem. according to the text book answer it is 6 hours. I keep getting 5. please help me by showing the process on how to get the correct answer so I can see what I'm doing wrong. Thank you so much for your help!
The problem is:
A parking garage charges $1.75 for the first hour and $0.50 for each additional hour or part of an hour. What is the maximum length of time Tom can park in the garage if he wishes to pay no more than $4.25?
Click here to see answer by stanbon(75887)

Question 218986: Solve the system of equations
2x+y=1
4x+2y=3
My answer is that there is no solution. Is that correct and if not what am I doing wrong?
Click here to see answer by Theo(13342)

Question 219036: Graph y equals x-5
Click here to see answer by jim_thompson5910(35256)

Question 219079: identify the slope and intercepts of 2x-6y=18
Click here to see answer by jim_thompson5910(35256)

Question 219415: Please help me solve the problem
For the point slope equation given, state the slope and the point on the graph used in creating the equation.
y= 10/7(x-11)
Click here to see answer by jsmallt9(3758)

Question 219591: How to graph a fraction?
Click here to see answer by RAY100(1637)

Question 219630: I do not know how to graph the parabola y= x^2
Click here to see answer by stanbon(75887)

Question 219630: I do not know how to graph the parabola y= x^2
Click here to see answer by jim_thompson5910(35256)

Question 219977: The plane formed by the intersection of the x an y axis 15 letters
Click here to see answer by Alan3354(69443)

Question 220094: i need graphing and identify the y intercept, y=2x-3
Click here to see answer by rfer(16322)

Question 220241: How can you determine if two lines are perpendicular?
Click here to see answer by solver91311(24713)

Question 220241: How can you determine if two lines are perpendicular?
Click here to see answer by jim_thompson5910(35256)

Question 220271: Is f(x) = 3x � 3 a function
Click here to see answer by rapaljer(4671)

Question 220303: how do i write the inequalities of a graph when a graph of a certain line is just given? how do i start?
i hope you have n example on a coordinate plane to show me
thank you for your time

Click here to see answer by rapaljer(4671)

Question 220244: how can i convert 2x+3y<9 correctly in steps?

Click here to see answer by ankor@dixie-net.com(22740)

Question 220365: HI MY NAME IS FABIAN AND IM DOING PROBLEM SOLVING:USING CHARTS IN ALGEBRA 1 AND I DON'T UNDERSTAND IT
Click here to see answer by rfer(16322)

Question 220436: Find the intercepts of the equation x-y squared=0

Click here to see answer by rapaljer(4671)

Question 220448: How do I write an equation for y intercept of 21 and a slope of -5?
Click here to see answer by rapaljer(4671)

Question 220465: -24<-3x-3<-12
Click here to see answer by checkley77(12844)

Question 220537: Help solve this inequality: 7y-12<8y+15
and i have to graph it
Click here to see answer by jim_thompson5910(35256)

Question 220537: Help solve this inequality: 7y-12<8y+15
and i have to graph it
Click here to see answer by stanbon(75887)

Question 220461: -3x<-9 or 2x>6x-4
Click here to see answer by bakerrrr(1)

Question 220621: #15
find the equation of the horizontal line containing the point (-3,-1)
Click here to see answer by rapaljer(4671)

Question 220603: The relationship between the Fahrenheit (F) and Celsius (C) temperature scales is given by the linear function below.
F = 9/5 C+32
(a) What is the slope of the graph?

(b) What is the F-intercept?
Click here to see answer by Theo(13342)

Question 220663: Graph the inequality on a plane. 3x-2 <= 5x+y
Click here to see answer by stanbon(75887)

Question 220705: For what values of x does the graph of f(x) = 2x^3 - 3x^2 - 6x + 51 have a horizontal tangent?
smaller and larger values?

Click here to see answer by stanbon(75887)

Question 220706: Solve by the elimination method.
5x+6y=-13
8x-6y=-52
What is the solution of the system? Select the choice below, and, if necessary fill in the answer box to complete your choice.
A. The solution is __ (Type an ordered pair. Use integers or fractions for any numbers in the expression.)
B. There are infinitely many solutions.
C. There is no solution.
Click here to see answer by tutor_paul(519)

Question 220754: graph
y=1/2x+3

Click here to see answer by babydoll77stl(4)

Question 220898: what is the plot points for
4x+10y=-28
6x+7y=6
Click here to see answer by ParliamentTutors(1)

Question 220829: √[ (3x+7)^2]
What are the constants, and variables in the equation? What are the difference between variables and constant? Explain.
Click here to see answer by rfer(16322)

Question 220895: solve the system of equations by graphing
y=x
y=2x-3
Click here to see answer by drj(1380)

Question 220591: When calculating the slope of the line through two points, does the order of subtracting the coordinates matter? Explain with examples.
Click here to see answer by likaaka(51)

Question 221185: Single Women. The percentage of women in the 20-24 age group who have never married went from 55% in 1970 to 73% in 2000 (Census Bureau, www.census.gov). Let 1970 be year 0 and 2000 be year 30.
a.) find and interpret the slope of the line through the points (0, 55) and 70, 73).
b.) find the equation of the ine in part (a).
c.) what is the meaning of the y-intercept?
d.) use the equation to predict the percentage in 2010
e.) if this trend continues, then in what year will the percentage of women in the 20-24 age group who have never married reach 100%
Click here to see answer by stanbon(75887)

Question 221188: How do you sketch this by hand without a calculator.
y=|2x^3+x^2-4x+1|
I know you disregard the modules and first graph it normally but it seems to have overwhelmed me.
Click here to see answer by Alan3354(69443)

Question 221278: Graph the inequality on a plane. I do not get how to do these problems, I always get them wrong no matter how many times I try them.
x+y<3
Click here to see answer by stanbon(75887)

Question 221279: Solve the system of equations by graphing. Then classify the system.
3x+ y=15
4x+5y=-13

Click here to see answer by drj(1380)

Question 221275: hi, i'm having trouble in sketching a graph of a function
the function is y = 2x^2 -11x +12
i don't know where to start, do i factorise the equation?
if i do factorise it i will get (x-1.5)(x-4) where do i go from that? :S
thank you!
Click here to see answer by Alan3354(69443)

Question 221470: graph the linear equation
x-5y=-3
Click here to see answer by checkley77(12844)

Question 221588: What is the slope and y-intercept of y = -2/3 x -12
Click here to see answer by drj(1380)

Question 221636: Graph the following and put your answer in set builder notation and interval notation. 3 > z - 1
Click here to see answer by stanbon(75887)

Question 221706: how do I find the x-intercept and y-intercept for this problem. 10x+20y=120
Click here to see answer by rfer(16322)

Question 221830: How do you graph a piecewise-defined function that has the lines y = 2x+3 and
y = 3-x?
Click here to see answer by stanbon(75887)

Question 221913: How do I write an equation of a line segment with domain and range?
Click here to see answer by solver91311(24713)

Question 222030: hi how can i find the answer to a question like 2y - 4x = 8 and then decide whether the given ordered pair (-2,8). i think i have to find if x=? and y= ? and the two ? will b the numbers -2 and 8, but im not sure. canyou help me? thank you!
Click here to see answer by checkley77(12844)

Question 222104: hi there... ... i have a simple question, but it is hard for me... i have to find three DIFFERENT ordered pairs for the problem X = 2 and all i can get is (2,0) can you help me find the other 2 please? thank you
Click here to see answer by solver91311(24713)

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