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

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Question 235686: Please find the vertex, y intercept and x intercept and graph the following equation: x^2 + 8x + 7 =
Click here to see answer by stanbon(75887) About Me 

Question 235735: The original problem was x+8x=7

Solve this

Click here to see answer by Jeff Gordon(65) About Me 

Question 235798: Write the function 5x + 10y = -20 in slope-intercept form.
Click here to see answer by rfer(16322) About Me 

Question 235806: What is the slope and y-intercept of 2x-5y=15?
Click here to see answer by rfer(16322) About Me 

Question 235809: What is the slope and y-intercept of -2x-3y=6?
Click here to see answer by rfer(16322) About Me 

Question 235857: Resolution
(*) y= 2x-1
Attribute at least two values of x an get y values in oder to get two or more points to draw grah.
example:
for x=0; y=2*0-1 then y=-1 and we get the first point A(0,-1)
for x=1; y=2*1-1 then y=1 and we get the second point B(1,1)
We must materialize A and B then join A and B. that's all.
for the second equation y= -3x +9 do the same thing: attribuate any values of x(at least two values) in oder to get y.

Click here to see answer by checkley77(12844) About Me 
Question 235857: Resolution
(*) y= 2x-1
Attribute at least two values of x an get y values in oder to get two or more points to draw grah.
example:
for x=0; y=2*0-1 then y=-1 and we get the first point A(0,-1)
for x=1; y=2*1-1 then y=1 and we get the second point B(1,1)
We must materialize A and B then join A and B. that's all.
for the second equation y= -3x +9 do the same thing: attribuate any values of x(at least two values) in oder to get y.

Click here to see answer by cheikoda(2) About Me 

Question 234778: how do you write an equation of a line on a graph without points?
Click here to see answer by Alan3354(69443) About Me 

Question 235923: Solve by the elimination method
X+ 8y = 36
-X + 6y = 20

Click here to see answer by stanbon(75887) About Me 

Question 236194: y=(3/5)x+3
Click here to see answer by checkley77(12844) About Me 

Question 236149: given f(1/2)=2x^+3x-6 what is the answer
Click here to see answer by checkley77(12844) About Me 

Question 236092: why the log function graph doesn't go negative?
what will be the graph of 1/((x^2)-5x+6)?

Click here to see answer by Theo(13342) About Me 

Question 236568: Solve by elimination method
3x+4y=2
6x+8y=4

Click here to see answer by jim_thompson5910(35256) About Me 

Question 236663: Find the slope of the line through the points (1/2,3/4) and (3/5, 5/4)
Click here to see answer by srisanj4(2) About Me 

Question 236659: can you please help with this problem y=3x+1
Click here to see answer by checkley77(12844) About Me 

Question 236646: Determine the slope
3x-6y=6

Click here to see answer by checkley77(12844) About Me 

Question 236618: how to graph this problem 2x+3y-22=13y+8
Click here to see answer by checkley77(12844) About Me 

Question 236437: 4x +y < 8
x – y > 2
how to graph these linear inequalities

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

Question 236837: The slope of a line is -16 and the point (10, 18) is on the line. Express the line in slope-intercept form.
Click here to see answer by checkley77(12844) About Me 

Question 236885: How do find out how to graph linear equations on a graph?
Click here to see answer by Edwin McCravy(20054) About Me 

Question 236931: n-15<3
Click here to see answer by nyc_function(2741) About Me 

Question 236933: 11>b+4
the sign after me 11 is to have a line under it and also it needs to be graphed i dont understand how to do it when adults explain it to me unless they explain it like teenagers way of understanding

Click here to see answer by nyc_function(2741) About Me 

Question 236970: how to solve 6x+3 when x=2
Click here to see answer by RAY100(1637) About Me 
Question 236970: how to solve 6x+3 when x=2
Click here to see answer by checkley77(12844) About Me 

Question 237193: 3(7x - 4) + 2 (12 - 4) > 3 (4x +1) -1
Click here to see answer by cowgirl30(8) About Me 

Question 237214: I am not really understanding how to do this,
I need to evaluate each of the functions below at x= 1,2,4,8, and 16. Plot the graph of each function. Classify as linear, quadratic, polynomial, exponential or logarithmic and explain the reasons for your classifications.

f(x) = x^2 - 5x + 6

Click here to see answer by rapaljer(4671) About Me 

Question 237273: given the equation 3x+y=6
a.) what are the x and y intercepts? show your calculations
b.) on the graph at the right draw the equation using the x and y intercepts.
c.) does the line you drew in b have a positive slope, a negative slope, zero slope or no slope? you should not have to do any calculations to answer this question.

Click here to see answer by rapaljer(4671) About Me 

Question 237316: Find the y- and x-intercepts for the equation. Then graph the equation.
4y = -28 + 7x

Click here to see answer by solver91311(24713) About Me 

Question 237347: What is the equation of a line with slope 3, going through the point (-1, -1)

Click here to see answer by College Student(505) About Me 

Question 237438: Graph using the slope and y-intercept.
-3x - y = 0

Click here to see answer by jim_thompson5910(35256) About Me 

Question 237423: An open box is made from a thin square metal sheet measuring 10cm by 10cm. Four squares of side x centimeters are cut away and the remaining sides are folded upwards to make a boz of depth x centimeters
a-Show that the external surface area Acm^2 is given by the formula A=100-4x^2 where 0 b-Draw the graph of A against x by first constructing a table of values.
c- Use your graph to find values of x which will produce a box with an external area of between 50cm^3 and 75cm^3, inclusive.

Please please help me solve this question. It is really urgent!!
Thanks !!!

Click here to see answer by solver91311(24713) About Me 

Question 237488: I need to show the work on how to get x=1 from the equation 1/2(x+7)=1/3(10x+2)

Click here to see answer by checkley77(12844) About Me 

Question 237558: Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x - 4y = 8
8x + 6y = 8

Click here to see answer by jim_thompson5910(35256) About Me 

Question 237659: solve foe x: (1/2) + (x/3) = -x
Click here to see answer by College Student(505) About Me 

Question 237744: Instructions: Write and graph an inequality that models the situation.
Zark is buying peanuts and cashews for apatry. He can spend no more than $24. Peanuts cost $3 per pound and cashews cost $3 per pound.
Let x = number of pounds of peanuts
Let y = number of pounds of cashews
inequality: ________________
1. Which of the following is a solution of the inequality:
a. (2, 8) b. (4,6) c. (8,2)
2. What is the greatest number of poutnds of peanuts that Zark can buy?
3. If x=6 lb, what are all possible values of y?
I'm in the 8th grade and our teacher didn't explain this, she stated she is not sure either...go figure. Please help Anyone!

Click here to see answer by stanbon(75887) About Me 

Question 236015: Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Show your work. Use the resulting ordered pairs to plot the graph. State the equation of the line asymptotic to the graph (if any).
x=4^-x, x=4^y



Click here to see answer by ninawmsw(1) About Me 

Question 236825: If (1, y) is on the graph, then y = ?
Click here to see answer by College Student(505) About Me 

Question 237891: graph and analyze y= 2x-5 include interval

Click here to see answer by vleith(2983) About Me 

Question 238116: graphing the linear inequality in two variables
y<2x+2

2x<3y+6

Click here to see answer by solver91311(24713) About Me 

Question 238193: how do you find the b in y=mx+b
Click here to see answer by Theo(13342) About Me 

Question 238171: I always get confused with numbers and variables.

2x+5y=25
Is there an easier way?

Click here to see answer by checkley77(12844) About Me 

Question 238164: i need help with understanding how to solve inequalities and graph its solutions example -3>-3+k i dont want just the answer i want to know how you came up with the answer
Click here to see answer by Theo(13342) About Me 
Question 238164: i need help with understanding how to solve inequalities and graph its solutions example -3>-3+k i dont want just the answer i want to know how you came up with the answer
Click here to see answer by College Student(505) About Me 

Question 238229: write the equation of the line perpindicular to
y=1/2x-5 through point (3,-7)
[1/2 is one half]

Click here to see answer by checkley77(12844) About Me 

Question 238419: y= x-3
y= 1/7x+3

Click here to see answer by Fombitz(32388) About Me 

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