Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Question 240792: Hello, Please help me with the following. I am having a difficult time! 1. In the following exercise, find the coordinates of the vertex for the parabola defined by the given quadratic function. f(x)=4x^2+8x+1 The vertex is? (Type an ordered pair) Thanks!! Click here to see answer by stanbon(57984)

 Question 240794: I'm actually in Algebra 1, but we're talking about parallel and prependicular lines. The question says to write an equation in slope-intercept form for each line according to given information. Contains (3,-5) and is parallel to 5x-2y=10 Click here to see answer by vleith(2825)

 Question 240825: find the slope. throug (4,-2) and parallel to x=1 Click here to see answer by Edwin McCravy(8999)

 Question 240840: Find the equation of the line that passes through the point (-2, 13) and is perpendicular to y = -2/5x + 3. Click here to see answer by solver91311(17077)

 Question 240854: Write an equation in slope-intercept form for the line that is parallel to the given line and that passes through the given point. y=7;(2,4) Click here to see answer by solver91311(17077)

 Question 240852: how do you write an equation in slope-intercept form given two points Click here to see answer by checkley77(12569)

 Question 240851: Write an equation in slope-intercept form for the line that is parallel to the given line and that passes through the given point. 5x-2y=10;(3,-5) Click here to see answer by checkley77(12569)

 Question 240838: 1. Find the slope and y-intercept of the line. 15x + 9y = –27 (the possible answers are) -slope is 5/3; y- intercept is 3 -slope is -5/3; y-intercept is -3 -slope is -5/3; y- intercept is -1/3 -slope is -3/5; y-intercept is -3 3. Find the x- and y-intercept of the line. –7x + 6y = 84 • x-intercept is –12; y-intercept is 14. • x-intercept is 14; y-intercept is –12. • x-intercept is –7; y-intercept is 6. • x-intercept is 6; y-intercept is –7. Click here to see answer by checkley77(12569)

 Question 240850: Write an equation in slope-intercept form for the line that is parallel to the given line and that passes through the given point. 4y=x;(4,0) Click here to see answer by ankor@dixie-net.com(15747)

 Question 241066: I am working with functions and their graphs I have a problem I am trying to solve I can get some of it but I'm not coming up with the correct answer can you please help. (2,9); x=8y=7 I can get to this and then I am lost y-9=-1/8x +2 Click here to see answer by checkley77(12569)

 Question 241081: solve each system of linear equations by elimination 2x+5y=7 3x-3y=-21 Click here to see answer by nyc_function(2733)

 Question 241080: graph each system of inequalities or indicate that the system has no solution? x+y>2 y<1 x>0 Click here to see answer by nyc_function(2733)

 Question 240679: 1. A line passes through (2, –1) and (8, 4). a. Write an equation for the line in point-slope form. b. Rewrite the equation in standard form using integers. Click here to see answer by ankor@dixie-net.com(15747)

 Question 240330: Hello, I have several things that I need help with. I need to see all of the steps to help me work future problems out. I am grateful for your help! This algebra has been mind boggling after being out of school for 32 years. 1. Graph the equations by completing the tables and plotting the points. You may use Excel or another web-based graphing utility. a). y = -½ x + 3 Use the table; find at least 3 points using any values for x. x y -2 0 4 b). Use the values of x provided in the table. x y 0 1 2 3 4 2. The cost function for the Recklus Hang gliding Service is C(x) = 0.4x2 - fx + m, where f represents the average fuel cost for a customer’s daily excursion and m represents the monthly hanger rental. Also, C represents the monthly cost in dollars of the small business where x is the number of flight excursions facilitated in that month. a). If \$60 is estimated to be the average fuels cost (f), and the monthly hanger rental is \$3,000; write an equation for the profit, P, in terms of x. Typing hint: Type x-squared as x^2 b).What is the cost when 40 flight excursions are sold in a month? c). How many flight excursions must be sold in order to minimize the cost? Show your work algebraically. Trial and error is not an appropriate method of solution – use methods taught in class. d). What is the minimum cost? Thanks so much for helping me. I am taking this class on-line and I am having problems grasping this subject. Best Regards, Click here to see answer by Alan3354(31538)

 Question 241280: I don't understand how to find slope from a graph. like i have this worksheet to do an i was absent so my teacher just gave me the worksheet, yeah i know bad teacher. anyways i'm suppose to find the slope of each line and i don't know what to do. Click here to see answer by rapaljer(4667)

 Question 241283: How do you find the slope of a line going through the given pair of points. (1/8,1/9) and (3/8,2/9) Click here to see answer by checkley77(12569)

 Question 241282: How do you write the slope-intercept form for the equation for the line passing through the given pair of points. (-5,1) and (4,6) Click here to see answer by checkley77(12569)

 Question 241386: x + y =5 2x - y =4 -2x +-2y = -10 2x-y =4 2x - y = 4 2x -2 =4 3y -6 __ ___ 3 = 3 y = -2 __ then lost - is this right so far and can you show me how to do problem? Click here to see answer by edjones(7569)

 Question 241434: Write each equation in standard form using onlu integers y= -2/3x-5/6 Click here to see answer by checkley77(12569)

 Question 241459: How do you find an equation in slop-intercept form of the line satisfying the specified conditions? through (-6,-9), perpendicular to -7x-5y=-3 Click here to see answer by stanbon(57984)

 Question 241373: y = 0.89x + 39.99, where "x" is the number of miles I drive the truck and "y" is the cost based on "x" miles. Click here to see answer by checkley77(12569)

 Question 241534: can someone please tell me the method to solving this linear equation? 3n-1/5 + n/2 = 2 / means over as in 5 over 10 (5 divided by 10) Click here to see answer by edjones(7569)

 Question 241582: Find the slope of the line satisfying the given conditions. (-8,-2)and(-9,-5) Click here to see answer by Alan3354(31538)

 Question 241617: 2. The cost function for the Recklus Hang gliding Service is C(x) = 0.4x2 - fx + m, where f represents the average fuel cost for a customer’s daily excursion and m represents the monthly hanger rental. Also, C represents the monthly cost in dollars of the small business where x is the number of flight excursions facilitated in that month. a). If \$60 is estimated to be the average fuels cost (f), and the monthly hanger rental is \$3,000; write an equation for the profit, P, in terms of x. Typing hint: Type x-squared as x^2 b).What is the cost when 40 flight excursions are sold in a month? c). How many flight excursions must be sold in order to minimize the cost? Show your work algebraically. Trial and error is not an appropriate method of solution – use methods taught in class. d). What is the minimum cost? Click here to see answer by stanbon(57984)

 Question 241676: the problem is to find the slope of the line. (x/2)+(y/3)=1 i dont know if the slope is -1 or (-3x/6) i think it is -1 but my sister said im wrong!!!! please help im so confused Click here to see answer by scott8148(6628)

 Question 241918: Find the equation of the line that has a slope of -2 and passes through (-4,4). Click here to see answer by College Student(505)

 Question 241445: An equation that has the solution m=4. the equation must have -variables on both sides of the equation and -one set of parentheses Click here to see answer by College Student(505)

 Question 241127: How do you solve and graph the following linear equations: 8x-2y=-4 Y-1/2x=3 Y-x=2 Click here to see answer by Alan3354(31538)

 Question 242056: step by step instructions for what is the equation of the line that contains the points with (x,y)coordinates (-3,7) and (5,-1) Click here to see answer by solver91311(17077)

 Question 242098: Express the linear equation 3x-4y+20=0 in slope y intercept form. Thank you, LV Click here to see answer by stanbon(57984)

 Question 242127: How would you graph the equation, y=3x-2 and identify the y intercept? Click here to see answer by checkley77(12569)