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

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Question 490543: graph the system of inequalities y ≥ x
x < 3
I got no clue how to do this.
Click here to see answer by mananth(12270)

Question 490654: I have tried this several times and still cannot find the correct answer. Using y = mx + b, and given a point and the slope write the equation.
m = -2/3 , (5, -4)
after subbibg in for the equation I got -4 = -2/3(5) + b
from that point i'm lost. please help.....
Click here to see answer by John10(265)

Question 490704: Find equation of line given these two points
(-3,-2) (2,6)
So far I have M = 8/5 [6-(-2)/2-(-3)]
y = 8/5x + b
6 = 8/5(2) + b
now what ?

Click here to see answer by John10(265)

Question 490704: Find equation of line given these two points
(-3,-2) (2,6)
So far I have M = 8/5 [6-(-2)/2-(-3)]
y = 8/5x + b
6 = 8/5(2) + b
now what ?

Click here to see answer by MathLover1(6808)

Question 490702: if m = -2/3, and passes through (5,-4)
write linear equation.

Click here to see answer by Gogonati(817)

Question 490739: Im getting stuck on Solving Systems by Graphing in algebra 1.
Im reviewing but I have clue what todo. One of the problems is :
y=3x -6
y=-x+2
So I have to graph this but I have no clue how!!

Click here to see answer by jim_thompson5910(28704)

Question 490685: a) with out solving the equation (or factoring) determine the solutions to the equations 7-6x-x^2=0 using only the graph. ( The graph is an upside down U with the right bottom leg at -8.5, the top of the curve is at 15 and the left leg is at 4 .. they intercept at -7,7 and 2)
b. Does this function have a maximum or minumum?
c. What are the coordinates of the vertex in (x,y) form?
d. what is the equation of the axis of symmetry for this parabola?
Breifly explain answers.
Click here to see answer by Edwin McCravy(8999)

Question 490885: please help help me with this question....Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.... -8x -4y=-68
x+3y=16 please help me with this asap i am not sure how to do this and cannot find a similar one to go by i need to get it back to my instructor today
Click here to see answer by ankor@dixie-net.com(15746)

Question 491006: find slope and y- intercept for y=1/5x-7

Click here to see answer by Alan3354(31510)

Question 490989: What formula would I use for writing an equation given the slope -3/7 and the point (-2,5) ?
Click here to see answer by MathLover1(6808)

Question 491177: graph the equation 6x+6y=30 by finding the intercepts.
My teacher has given us the answers, but I do not understand how I am supposed to figure this out without just copying the answer.
Click here to see answer by rfer(12727)

Question 491194: how do you solve this problem 5x-1=3+x

Click here to see answer by Alan3354(31510)

Question 491210: What is the slope and y-intercept for y=-3/7x-10/9

Click here to see answer by rfer(12727)

Question 491271: determine whether (4,-2) is a solution of 9x+3y=17
Click here to see answer by richard1234(5390)

Question 491318: With this problem 3x+7greater or equal to 4 and 2x - 5 greater or equal to -1 My answer was 3x is greater or equal to -3 and 2x is greater or equal to 4 can you please explain step by step
Click here to see answer by deborabr(181)

Question 491383: 2-5(x+1) >= 3(x-1)-8
2-5x-5 >= 3x-11
-3-5x >= 3x-11
8 >= 8x
1 >= x

Click here to see answer by ptth176(50)

Question 491587: Hello, my wife is in a college algebra class and we are having a problem with one problem. The problem is y=x^4-8x^2-9 and we have to list the intercepts and test for symmetry. We have been able to factor it down to y=(x^2+1)(x-3)(x+3) and then we are stuck here. The answer in the back of the book shows the intercepts as (3,0) (-3,0) and (0,9) but we are stuck and are unable to come up with any of the answers. the only intercept we could come up with was (0,-9) but that is wrong. Thank you for any and all help you can provide.
Bart
Click here to see answer by oberobic(2304)

Question 491611: find the slope and y-intercept of theline y=-2/9x-6
Click here to see answer by oberobic(2304)

Question 491812: write a rule for the function inputx 1,3,5,7 output,y 1,2,3,4
Click here to see answer by richard1234(5390)

Question 492163: how to write an equation for the graph of a line for which the x-coordinate of each point is 2?
Click here to see answer by chessace(471)

Question 492380: what is the answer to y-3=7;4

Click here to see answer by oberobic(2304)

Question 492423: The problem is: Xul is 2 yrs older than his sister Maria. The sum of their ages is greater than 32. Describe Marias age.
I had gotten this so far: X=2m and 2x+x>=32
I don't know what to do after that...Or even if that is correct.

Click here to see answer by scott8148(6628)

Question 492985: How do you find points on a line if you are given an equation like y=4x-3
Click here to see answer by Alan3354(31510)

Question 493701: The slope of the line through points ( –5 , –9 ) and ( –11 , –12) is
Click here to see answer by rfer(12727)

Question 493781: what is the slope of the line y=8x+1?

Click here to see answer by nerdybill(7003)

Question 493827: what is the slope of the line y=x-3
Click here to see answer by swincher4391(726)

Question 493831: what is the slope of the line y=54?
Click here to see answer by Alan3354(31510)

Question 493840: what is the slope of the line x=12?
Click here to see answer by swincher4391(726)

Question 493854: y-x=0
Click here to see answer by swincher4391(726)

Question 494282: how can i solve using substitution?
x=y+4
2x+3y=43
Click here to see answer by stanbon(57956)

Question 494423: I have tried this so many times and I just cant seem to get it
0.6x+5 < 1.4x-8
Click here to see answer by ptaylor(2052)

Question 494496: Is there a benefit to doing graphing?

Click here to see answer by Alan3354(31510)

Question 494479: x+y=6
3x-4y=4
Click here to see answer by Alan3354(31510)

Question 494524: What is the y-intercept of the line? Enter your answer as an ordered pair.

y = 2x + 10

Click here to see answer by nerdybill(7003)

Question 494568: translate the sentence to an algebraic inequality.
the score on a test was greater than 80
Click here to see answer by solver91311(17075)

Question 494651: Solve the system of equations by graphing.
y=-2x-2
y=-4x
Click here to see answer by MathLover1(6808)

Question 494674: Okay, I need some help with this question asking about Inequalities with algebra based problems with a graph. I am not good at solving these types of problems when it asks which graph is it.
Question: "Select the correct graph of y ≥ |x + 1|."
How would you go about solving this?
Click here to see answer by stanbon(57956)

Question 495651: Explain why the graph of a polynomial function with real coefficients must have a y-intercept but may have no x-intercept.
Click here to see answer by oberobic(2304)

Question 496612: Hi Sir/ Mdm.,
I come to a question of inequalities which made me feel curious, the question and working is as below:
x-1/(x+1)≥ 2
X – 1 ≥ 2( x +1)
x-1 ≥ 2x +2
x -2x ≥2+1
-x ≥ 3
X ≤ -3
Since X ≤ -3, so the possible values for x will be -3,-4,-5,....
Am I right?
I test the inequalities with -3, the answer is 2≥ 2, so it is acceptable,
But why when I test the inequalities with - 4 and so on , the value is less than 2,
So does that mean this inequalities only have one possible value of x, that is x=-3.
So should I write my answer as X ≤ -3, or x= -3?
Click here to see answer by scott8148(6628)

Question 496817: find the y-intercept and the x-intercept for the equation -15x+y=25
what is the intercept of y
What is the intercept of x
Click here to see answer by Maths68(1474)

Question 498244: y = -2 divded by 5x +3
Click here to see answer by MathLover1(6808)

Question 498398: Can anyone Please help me, this problem is confusing to me
graph the function find the vertex line of symmetry and maximum or minimum value
f(x)=(x+3)^2 -2
the vertex is
the minimum value is f(x)=

the answer i got was
(-3,-2)
the second part f(x)=-2

Click here to see answer by Theo(3504)

Question 498560: During four football games,a California high school team scored 22 times. They either scored 7 points with a touchdown and the point after or 3 points with a field goal. The team scored a total of 134 points. How many field goals did the team make?
Click here to see answer by stanbon(57956)

Question 498667: Please help me understand this problem. A baseball team's manager buys 70 balls for $260. The balls used for practice cost $3 each and the balls used in games cost $4 each. How many balls used in games did the manger buy?
Click here to see answer by rfer(12727)

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