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

Tutors Answer Your Questions about Graphs (FREE)

Question 550339:
Click here to see answer by jim_thompson5910(28715)

Question 550335: Graph the function y=f(x)=x^2+1.
(please explain how the graph should look)
Click here to see answer by stanbon(57967)

Question 550650: 100-100/100-100=2?
Click here to see answer by Alan3354(31528)

Question 550747: CAN SOMEONE PLEASE HELP ME AND SHOW ME HOW TO WORK OUT THESE PROBLEMS.I IF U BREAK IT DOWN FOR ME I WILL UNDERSTAND IT BETTER.
SKETCH A GRAPH OF Y=(X/2)-1. INCLUDE THE SLOPE AND BOTH INTERCEPTS.

THANK YOU!
Click here to see answer by mananth(12270)

Question 550776: Graphs 3x+y<5
Click here to see answer by Alan3354(31528)

Question 550774: Graph x=7-2y
y=3x

Click here to see answer by Alan3354(31528)

Question 550772: Graph x<2y
x+y<0
Click here to see answer by mananth(12270)

Question 550875: When graphing a quadratic equation, how do you know if the graph will have a maximum or a minimum? How do you calculate the maximum/minimum?
Click here to see answer by Alan3354(31528)

Question 550840: graph each of the equations (y=x^2-1), (y=-3x^2) and label the vertex and the axis of symmetry
Click here to see answer by Alan3354(31528)

Question 550893: Find the slope of the line containing the given pair of points. If the line is undefined, state so.
(5, 3) and (8, -4)

Click here to see answer by mathstutor458(57)

Question 550894: Given the linear equation y = -4x – 2, find the y-coordinates of the points (1, ), (-1, ), and (-3, ). Plot these points and graph the linear equation.
Click here to see answer by TutorDelphia(193)

Question 550842: Graph Equation and identify the y intercept.
x+4y+16

Click here to see answer by Alan3354(31528)

Question 550892: Find the x- and y-intercepts for the equation. Then graph the equation
2x + 3y = 15
Click here to see answer by TutorDelphia(193)

Question 550924: how would i solve this problem- 3x+4y=8;(4,-3) I don't get how to seperate the x from the y
Click here to see answer by Alan3354(31528)

Question 550933: my instructions are to write an equation that is parallel to the given line passes through the given point Here is the problem- 3x+4y=8; (4,-3) how would i solve this
Click here to see answer by scott8148(6628)

Question 551047: y=f(x)=5^x
Finding the correct graph

Click here to see answer by Alan3354(31528)

Question 551050: graph of y=2x +4. Then graph the equation to check your answer y=3x-9
Click here to see answer by oberobic(2304)

Question 551093: Graph the system x = 7 - 2y
y = 3x
and determine the solution set.
Click here to see answer by rfer(12730)

Question 551115: Which two lines are parallel?
A. 5y = –3x – 5
B. 5y = –5 – 3x
C. 3y – 2x = –1
Is the line through points P(–7, 2) and Q(7, –6) parallel to the line through points R(–1, –5) and S(–3, –1)? Explain.
Click here to see answer by Alan3354(31528)

Question 551116: Plans for a bridge are drawn on a coordinate grid. One girder of the bridge lies on the line y = –9x – 9. A perpendicular brace passes through the point (–1, 7). Write an equation of the line that contains the brace.
A. y – 1 = –1/9(x + 7)
B. x – 7 = –9(y + 1)
C. y – 7 = 1/9( x + 1)
D. y – 7 = –9(x + 1)
Write an equation in point-slope form of the line through point J(4, 1) with slope –49(x + 1)
Click here to see answer by nyc_function(2733)

Question 551235: I need help calculating the slope, x-intercept, and y-intercept of 4.2x +3.8y = 1.9. Thanks.
Click here to see answer by MsRedz123(24)

Question 551233: how do you solve for the unknown of x/3 -7/8 = 2/5(x + 15/4) any help would be greatly appreciated.
Click here to see answer by bucky(2189)

Question 551279: The Line Parallel To y=-2x+4 Through (-4,3)
Click here to see answer by fcabanski(889)

Question 551279: The Line Parallel To y=-2x+4 Through (-4,3)
Click here to see answer by MathTherapy(1483)

Question 551310: Please help me solve this equation: (5,7)and(5,-3)
Click here to see answer by richard1234(5390)

Question 551277: The Parallel Line To y=7x+4 Through (-8,-3)
Click here to see answer by nerdybill(7008)

Question 551377: 2000 students in the whole school and only 55 of 90 students are buying yearbooks approximately how many books should be orderd?
Click here to see answer by Theo(3504)

Question 551420: what does reflection of in the origin mean
Click here to see answer by KMST(1936)

Question 551618: Find the slope of the line that contains(7,-9) and(-8,0) .
Click here to see answer by Maths68(1474)

Question 551617: Find the slope of the line described by –3x + 5y = –30.
Click here to see answer by Maths68(1474)

Question 551624: Find the slope of the line(2,5) and (4,4).

Click here to see answer by Maths68(1474)

Question 551623: Find the slope of the line(3,3) and (7,1)

Click here to see answer by Maths68(1474)

Question 551620: Find the slope of the line that contains(5,-10) and(-1,-5)
Click here to see answer by Maths68(1474)

Question 551615: Find the slope of the line described by 4x + 6y = –12.
Click here to see answer by rfer(12730)

Question 551667: Question: Is the equation x+1/y=6 a linear equation, and if yes, how can it be put into standard form?
Tentative answer: Yes, it is a linear equation?
Attempt to put into standard (Ax+By=C)form:
x+1/y=6
(y/1*x) + (y/1*1/y) = y/1*6
x*y + 1 = 6y
x*y - 6y = -1
y*(x-6) = -1
At this point my understanding breaks down and I do not know how to get this equation into Ax+By=C form. Can you please enlighten me? Thank you so much.
Click here to see answer by mananth(12270)

Question 551978: The following is a table of theyears of experience of university teachers and their corresponding salary in thousands of dollars.
0-----58,000
5-----68,000
10----78,000
a. give the linear function S(t) that gives the annual salary in thousands of dollars for t years of experience.
b.Predict the average salary for a teacher with 15 years experience.
(I believe it is 82,000, but don't know how to show the work)
c. Find the years of experience for a teacher that is paid $84,000.
(I believe it is 12.5 but don't know how to show the work)

Click here to see answer by richard1234(5390)

Question 552246: what are some disadvantages to finding the y-intercept from the graph?
Click here to see answer by richard1234(5390)

Question 552296: Hi tutor,
I need help on this problem. It is asking me to graph the these lines and highlight the positive slope lines pink and the negative blue. So how would you graph y=3x+5 or y=0.5x+3. Please help me with this because it is due tomorrow. thanks
Click here to see answer by AnlytcPhil(1278)

Question 552413: I am trying to help my daughter with her homework from 1300 miles away please help! The problem is find the equation of a line in slope intercept form with an undefined slope and passes though (3,-2). Thank you so much, it's been a long time since I've done this stuff.
Click here to see answer by stanbon(57967)

Question 552327: multiply (2/3)(4/5)
Click here to see answer by 10301650(32)

Question 552516: Can you please solve each equation by graphing. If it is necessary then round to the nearest hundredth.
1. -x3 + 3x + 4 = 0
2. –x3 + 2x2 + 1 = 0
Click here to see answer by stanbon(57967)

Question 552505: (-3)/(2) <=== Graph that solution PLEASE
Click here to see answer by Alan3354(31528)

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