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

Tutors Answer Your Questions about Graphs (FREE)

Question 258157: Solve the equations by substitution.
8x = 2y + 5
3x = y + 7
x = ?
y = ?

Click here to see answer by palanisamy(496)

Question 254678: how do you graph y=4x^2-x+1?
Click here to see answer by Alan3354(30993)

Question 258239: At least 150 coupon books are sold. Ezra sold at most two times as many as Tava plus 30. Show all possible solutions.
Click here to see answer by richwmiller(9135)

Question 258223: For the line given by the following equation, find the equation of the line that is perpendicular to it and passes through the origin.

y=2x+3

Click here to see answer by richwmiller(9135)

Question 258213: write the standard form of the equation of the line that is perpendicular to the graph of the given equation and passes through the point with the given coordinates.
x=-8; (4,-6)
Click here to see answer by richwmiller(9135)

Question 258324: Find the y-intercept of 3x-y=-15
Click here to see answer by palanisamy(496)

Question 258203: Graph the folowing inequalities y>-2x-1
Click here to see answer by Fombitz(13828)

Question 258254: Graph the inequality 0 > 9+6x-9y
Click here to see answer by drk(1908)

Question 258384: Solve the equations by substitution.
7 + 2y = 8x
3x - 2y = 0
x = ?
y = ?

Click here to see answer by checkley77(12569)

Question 258546: Given y= 1/(1-x) - 2
What are the two asymptotes( i think they are y=-2 and x=1) ?
What is the domain and range of this equation? ( D= all real number except for 0, what's the range?)
Thanks
Click here to see answer by drk(1908)

Question 258551: Solve the equations by substitution.
8y - 1 = x
3x = 2y
x = ?
y = ?
Click here to see answer by dabanfield(803)

Question 258840: how to graph f(7) on graph?
Click here to see answer by Fombitz(13828)

Question 258843: how do i graph y<0?

Click here to see answer by CharlesG2(828)

Question 258841: I have a graph question but i can not submit it this way please contact me so that i can email the question to you! Please someone respond,I have been stuck on this problem for about two months now please email me at feldershanika@aol.com
Click here to see answer by Fombitz(13828)

Question 258844: When graphing 2 lines on the same graph, which of the following will result in an algebraic solution that is the point (x, y)?
coincident lines
perpendicular lines
none of the above
Click here to see answer by Fombitz(13828)

Question 258875: Is the ordered pair a solution to the equation. -3x-8y=-25;(3,2)
Click here to see answer by drk(1908)

Question 258915: graph y = 2/3x + 1

Click here to see answer by checkley77(12569)

Question 258914: graph y = -2x - 3
Click here to see answer by checkley77(12569)

Question 258913: graph y = 4x + 2

Click here to see answer by checkley77(12569)

Question 258942: How do you do slope?
Click here to see answer by mathbath(13)

Question 258970: My son is learning graphing linear inequalities in school. He is not understanding it and I have no idea how to help him. Please help me understand how to do this. He is having to graph them. A few examples are:
y<2x+1
y>3x+2
y>1/2x+1
PLEASE HELP!! Thank you

Click here to see answer by richwmiller(9135)

Question 258996: is (6,3)a solution of y=2/3x+1
Click here to see answer by drk(1908)

Question 259003: The question says: Sketch a graph of each question. y=2
Im not sure how to do this, and I have a math exam tomorow. Please help
Click here to see answer by drk(1908)

Question 258906: Graph the absolute value: y={x+4}
Click here to see answer by drk(1908)

Question 259007: The question says: Sketch a graph of each question. y=2
Im not sure how to do this, and I have a math exam tomorow. Please help
Click here to see answer by Alan3354(30993)

Question 259231: A.construct a table of values for y=x^2-4x+3. use 0 B. Using your table from A, draw a table a graph of y=x^2-4x+3 in the space at the right.
c. based oon your graph and table, when x^2-4x+3=0 what is x?__________________
D. what is the formula of the line of reflection?_____________E. what are the coordinates of the turning point?_____________
please please please answer my questions
Click here to see answer by drk(1908)

Question 259251: How do you write an equation for these points in slope-intercept form

(-2,-9) (4,9)

Click here to see answer by Alan3354(30993)

Question 259259: write in standard form the eqation of a line that satisfies the given conditions.
perpendicular to 9x+3y=36, through (1,2)
Click here to see answer by Alan3354(30993)

Question 259469: what is the equation of 3x=2x+5?
Click here to see answer by Alan3354(30993)

Question 259469: what is the equation of 3x=2x+5?
Click here to see answer by ashtontr(4)

Question 259531: This is supposed to be review, so I feel kind of stupid, but i forgot how to do point-slope form. Well... here's my problem:
Write the point-slope form of the equation of the line through the given points.
Through: (0,-1) and (3,1)
I have more of these, so I only want one answer so i can know how to do the rest... Thank You!!
Click here to see answer by mathbath(13)

Question 259544: Graph y = x^2+2x – 3 and give the vertex and
x and y intercepts.
Click here to see answer by stanbon(57285)

Question 259544: Graph y = x^2+2x – 3 and give the vertex and
x and y intercepts.
Click here to see answer by drk(1908)

Question 259581: Write the point-slope form of the equation of the line described.
1)through: (3, -4), parallel to y=3x-4
2)through: (5,2), perpendicular to y=-5x+5
I posted 2 problems because thy're related and i didnt want to waste all 4 problems I could post, because it's a really big packet of review units.
Click here to see answer by scott8148(6628)

Question 259627: When making a telephone call using a calling card, a call lasting 6 minutes costs 1.65. A call lasting 16 minutes costs 3.65. Find a linear function that relates the cost of making a call (C) to the length of the call (x).
Click here to see answer by richwmiller(9135)

Question 259675: find the equation of a circle with endpoints (1,1) an (5,5).
Click here to see answer by Alan3354(30993)

Question 259661: 1)Find the x and y intercepts of-4x + 4y = -4
x 1 y -3/2
x 9/4 y -3/2
x 9/4 y -1
x1 y -1
2)Find the slope of the line (3,4) (6,5)
1/3
5/6
-1/3
3
Sorry I posted 2 questions but I have a large packet thats due asap and these both have to do with graphs
Click here to see answer by checkley77(12569)

Question 259746: how do I graph y=5/4x? There is no y intercept just the slope.
Click here to see answer by richwmiller(9135)

Question 259551: You have $160 and save $7 per week. Your friend has $210 and saves $5 per week. After how many weeks will each of you have saved the same amount of money?
Click here to see answer by richwmiller(9135)

Question 259987: identify the x and y intercepts 4x-5y=20
Click here to see answer by checkley77(12569)

Question 259987: identify the x and y intercepts 4x-5y=20
Click here to see answer by Alan3354(30993)

Question 259987: identify the x and y intercepts 4x-5y=20
Click here to see answer by richwmiller(9135)

Question 259930: Can you explain to me the process on graphing freactions ex(-5/2,3/2) on a rectangular coordinate system.
Click here to see answer by checkley77(12569)

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