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

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 Algebra: Graphs, graphing equations and inequalities Solvers Lessons Answers archive Quiz In Depth

 Question 307717: I don't know how to sketch a graph and find three ordered pairs that satisfy the equation : y=2x-6 Click here to see answer by Alan3354(30962)

 Question 307742: Graph the line with slope of 2 passing through the point (2,-5) Click here to see answer by Alan3354(30962)

 Question 307820: write an equation of the line containing the given point and parallel to the given line. Express your answer in the form y=mx+b (-3,6);4x=9y+8 The equation of the line is Y= Click here to see answer by mananth(12270)

 Question 307997: A line passes through the point (-5,-7) and has a slope of 3. Write the equation for this line. Click here to see answer by Fombitz(13828)

 Question 308097: i need to find x and y-intercepts for: x+y=10 Click here to see answer by rapaljer(4667)

 Question 308363: Consider the equation f(x)=x^2+6x+4 Find the x-intercepts by completing the square. Find the vertex Find the axis of symmetry I tried working out this problem 3 times and i can not solve it. My teacher said that when i find the x-intercepts that i should leave my answer in square roots rather than the decimal approximations. Click here to see answer by scott8148(6628)
 Question 308363: Consider the equation f(x)=x^2+6x+4 Find the x-intercepts by completing the square. Find the vertex Find the axis of symmetry I tried working out this problem 3 times and i can not solve it. My teacher said that when i find the x-intercepts that i should leave my answer in square roots rather than the decimal approximations. Click here to see answer by CharlesG2(828)

 Question 308420: Is (4, 5) a solution to this system of equations? 2x + 3y = 23 y + x = 9 Click here to see answer by Fombitz(13828)
 Question 308420: Is (4, 5) a solution to this system of equations? 2x + 3y = 23 y + x = 9 Click here to see answer by texttutoring(324)

 Question 308533: y=9x-10 y=-4x+18 I dont know the first step to solving this! I am supposed to solve by graphing Click here to see answer by Alan3354(30962)

 Question 308537: Y = x - 1/2 What is the slope and Y intercept? Click here to see answer by rapaljer(4667)

 Question 308729: Solve each of the following inequalities and graph the solution y-3>=5 I guess that this needs a solution set, not y>=8, and I don't really know how to get a solution set, I have a number of other problems of this sort, so if someone could please explain how to get a solution set I'd be most thankful Click here to see answer by rapaljer(4667)

 Question 308741: I need help with this question. I am so lost!! Graph the following equation and identify the y-intercept of y=x+3? Click here to see answer by Fombitz(13828)
 Question 308741: I need help with this question. I am so lost!! Graph the following equation and identify the y-intercept of y=x+3? Click here to see answer by rapaljer(4667)

 Question 308811: I'm trying to find the perpendicular line to 2x+3y=6 I know in order to find a perpendicular line you need to get the reciprocal but I'm not sure what I need to flip and turn into a negative. I tried writing it in y=mx+b form, but not really sure where to go from here. This is what I have so far. 2x+3y=6 -2x -2x ________ 3y=-2x+6 -------- 3 3 3 y=-2x+2 - 3 Not really sure the best way to show that I divided by 3 and how to write the fraction -2x - 3 So thats how I did it, hope it makes sense :) After playing around on a graph I found the answer is y=2x-2 - 3 but I don't know how to get that! Click here to see answer by Fombitz(13828)

 Question 308845: How do you solve for I=prt solve for p? Click here to see answer by solver91311(16868)

 Question 309091: Using the standard window settings, Emily graphed y=x^3+3x^2-x-3 on her graphing calculator. She then used her graph to correctly solve the inequality x^3+3x^3>- x+3. What is her solution. Click here to see answer by stanbon(57222)
 Question 309091: Using the standard window settings, Emily graphed y=x^3+3x^2-x-3 on her graphing calculator. She then used her graph to correctly solve the inequality x^3+3x^3>- x+3. What is her solution. Click here to see answer by Fombitz(13828)

 Question 309165: what is the equation of the axis of symmetry, the coordinates of the vertex of the graph of each function for y=x^2-2x-5, y=-x^2+4x-1, y=2x^2+4x-2 Click here to see answer by Fombitz(13828)

 Question 309187: how would i solve 3x+3y=9 so that I can graph it? Click here to see answer by Alan3354(30962)

 Question 309172: solve each eqation by completing the square. round to the neareast tenth if necessary. b^2+12b+21=0 Click here to see answer by richwmiller(9135)

 Question 309171: find the value of c that makes each trinomial a perfect square. g^2+6g+c Click here to see answer by richwmiller(9135)

 Question 309169: solve each equation by taking the square root of each side. round to the nearest tenth if necessary. c^2-12x+36=4 b^2+16b+64=9 y^2+2y+1=3 Click here to see answer by checkley77(12569)

 Question 309227: find the equation of a line given x-intercept 4 and y intercept -6 Click here to see answer by stanbon(57222)

 Question 309374: Graph each system of constraints. Find all vertices. Evaluate the objective function at each vertex to find the maximum or minimum value. 1. x <= 3 y <= 7 x >= 0 y >= 0 2. 2x + y <= 30 x + y <= 20 x >= 0 y >= 0 Click here to see answer by Fombitz(13828)

 Question 309564: Find the intercepts. Then graph. 3x - 9 = 3y Click here to see answer by mariabeth(1)

 Question 309565: Find the slope-intercept equation for the line with the indicated slope and y-intercept. Slope 3/4; y-intercept (0, 35) Click here to see answer by alicealc(281)

 Question 309721: Determine the x- and y- intercepts (if any) of the given equation...5x = -35. please show your work. I don't think there are any intercepts but a little confused with this problem. Click here to see answer by stanbon(57222)

 Question 309719: A gas stattion sells 4820 gallons of gas on a day when they charge \$1.35 per gallon, and they sell 3880 gallons on a day when they charge \$1.40. Find the equation for the line whose graph depicts this data. Click here to see answer by alicealc(281)

 Question 309804: I have a problem on graph and slope lines for y=-4 how do you graph that? Click here to see answer by nerdybill(6948)

 Question 309846: determine whether (7,-1) is a solution of 5x-7y=17 Click here to see answer by Mdehheb(2)

 Question 309896: Use the intercepts to graph the equation. x + 4y = 8 Click here to see answer by jim_thompson5910(28476)

 Question 309927: write an equation with the given points parallel to the given line (6,8) x+6y=5 Click here to see answer by toidayma(44)

 Question 309877: Help solving theses problems: 1.Simplify √256x^2 2.Simplify √18x^4y^3 3. Simplify -4√32xy 4.Multiply and simplify 3√10(4+2√2) 5.Evaluate. Type the numerical answer. 256^1/4 6. Evaluate. Type the numerical answer. 8^4/3 7.Write an equivalent expression using radical notation and, if possible, simplify. (9y8)^3/2 8.Use rational exponents to simplify 6√x^30 Click here to see answer by jim_thompson5910(28476)