# 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 359691: What is the x-intercept of the function 12x - 10y = 4800? Click here to see answer by Fombitz(13828)

 Question 359668: 1. Imagine you are at a gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation a. What does the number 3.03 represent? M = slope b. Find C(2). C(2) = 3.03(2) = 6.06 c. Find C(9). C(9) = 3.03(9) = 27.27 d. For the average motorist, name one value for g that would be inappropriate for this function’s purpose. Explain why you chose that number. The inappropriate function would be a negative number such as – 2 because a negative number cannot equal the cost of a gallon of gas e. If you were to graph C(g), what would be an appropriate domain and range? Explain your reasoning. Click here to see answer by edjones(7569)

 Question 359743: my first qustion is how do you graph the linear equation 3x+y=7 my second question is how do you write an equation for "parallel to x+2=0 with x-intercept (-1,0)" in a slope intercept form? Click here to see answer by Fombitz(13828)
 Question 359743: my first qustion is how do you graph the linear equation 3x+y=7 my second question is how do you write an equation for "parallel to x+2=0 with x-intercept (-1,0)" in a slope intercept form? Click here to see answer by checkley77(12569)

 Question 359881: Find the equation of a line that is perpendicular to the line x=19 and contains the point (-5, 2) Click here to see answer by robertb(4012)

 Question 359893: what are the x and y intercepts for 3x-5y=-45 Click here to see answer by robertb(4012)
 Question 359893: what are the x and y intercepts for 3x-5y=-45 Click here to see answer by jim_thompson5910(28717)

 Question 359914: I need to find the equation of a line through (-5,4) and parallel to -6x+4y=-7 The equation needs to be written in standard form. I have tried to work several versions of this problem and get them wrong each time. I have problems half way through it, due to the fractions. My book is not clear enough. Thank you Click here to see answer by mananth(12270)

 Question 359922: Find the intercepts and use them to graph the equation y=x^2-9 Click here to see answer by nyc_function(2733)

 Question 359826: What is an equation for a line that passes through the origin and is parallel to the line 2x-y=5? Click here to see answer by ankor@dixie-net.com(15746)

 Question 359946: Find the equation of the line that contains the point (-1,-9) and has a slope that is undefined. Click here to see answer by stanbon(57982)

 Question 359975: what is the average rate change of the fuction over each interval. f(x)=2+cost A [0, pi] B [-pi,pi] Click here to see answer by Fombitz(13828)

 Question 359992: How do I find the linear equation of a line. This is 8th grade algebra. Click here to see answer by scott8148(6628)

 Question 360032: find the value of k so that the two given lines will be parallel: (k+2)x-5y=8 and kx+3y=9. Click here to see answer by robertb(4012)

 Question 360024: Graph the line with the slope of -4/3 that passes through the points(5,4) Then find the equation Click here to see answer by mananth(12270)

 Question 360039: find values of A and B so that the graph of the given equation will contain the give points: Ax+By=3;(8,3)and(13,7) Click here to see answer by Jk22(389)

 Question 360076: Hello, I would like to know the steps in solving the following type of problem: Solving a system by Substitution: y=3x 2x+3y=22 You are asked to solve the system by using the substitution method Click here to see answer by vleith(2825)

 Question 360134: 3x-6=2y If x is 8, what point (ordered pair), satisfies the equation? Click here to see answer by ewatrrr(10682)

 Question 360138: Find the slope of the line between the two points, (3,5) and (6,-2). Please show all steps. Click here to see answer by ewatrrr(10682)

 Question 360144: What is the y-intercept of the line 2y=3x-6? Click here to see answer by ewatrrr(10682)

 Question 360149: What is the x-intercept of the line 2y=3x-6? Click here to see answer by ewatrrr(10682)

 Question 360268: My question is a word problem, Part of the proceeds from a garage sale was \$280 worth of \$5 and \$10 bills. If there was 20 more \$5 than \$10 bills find the numbers of each denomination. Click here to see answer by mananth(12270)

 Question 360269: Determine the slope and y-intercept of the following equation: 2x + 3y = 5 Click here to see answer by rfer(12730)

 Question 360328: find an equation of the line having the given slope and containing the given point m=9,(8,1) Click here to see answer by mananth(12270)

 Question 360316: The width of a rectangular lot is 75% of its length. If the perimeter is 700 meters, then what are the length and width? Click here to see answer by mananth(12270)

 Question 360410: Find the coordinates of the vertices for: y=8-4x y=5-x y=x-2 Click here to see answer by Edwin McCravy(8999)

 Question 360476: Find "k" if the line 3x+ky=5 is parallel to the line 2x-7x=4. Click here to see answer by ewatrrr(10682)

 Question 360551: What is the equation of a line with points (3,4) and (11,18). After that I need the intersection of that line and line y=-3/2x +12. Thank you. Click here to see answer by nerdybill(7009)
 Question 360551: What is the equation of a line with points (3,4) and (11,18). After that I need the intersection of that line and line y=-3/2x +12. Thank you. Click here to see answer by checkley77(12569)

 Question 360575: Find the amount of a 6% acid solution and the amount of a 14% acid solution that should be combined to prepare 50cc of a 12% solution. I believe the equation is set up this way: 1st 6% = .06x 2nd 14% = .14y mix 12% = .12(50) x + y = 50 .06x + .14y = 6 Then subtract .14y from both sides, then multiply both by 100? Am I on the right track, because I am way off on the correct answer. Thanks in advance! Click here to see answer by Alan3354(31537)

 Question 360482: Find "k" if the line 3x+ky=5 is parallel to the line 2x-7y=4. Click here to see answer by ankor@dixie-net.com(15746)

 Question 360604: In problem 25-28 write the equation and sketch the graph of each line with the given the slope and y-intercept. 25 Slope 1/2 and Y-intercept 3 26 Slope 2 and Y-intercept 3 27 Slope -2 and Y-intercept 1/2 28 Slope 2/3 and Y-intercept -1 Click here to see answer by Fombitz(13828)

 Question 360650: How do you graph this problem, on a seperate axis? 2x-5y=10 Click here to see answer by stanbon(57982)

 Question 360727: write an equation of a line with m= -5 b=-8?? Click here to see answer by jim_thompson5910(28717)

 Question 360808: graph the equation using the slope and y-intercept y=5/3x+8 Click here to see answer by ewatrrr(10682)

 Question 360845: There are seven questions that I am having trouble answering and would like some help on these if possible. 1- Find the slope and the y-intercept for y=2.3x-3 2- Find an equation of the line containing the given pair of points: (-6,0) and (0,5) 3- Write an equation of the line containing the given point and parallel to the given line. (6,-2); 3x-4y=5 4- Find the function value for f(x)=x^3(that is x to the 3rd power)f(-5)=? 5- Find the slope if it exists, of the line containing the pair of points. (5,8) and (10,-6) **the 2 choices I have to answer from are 1- the slope is undefined 2- the slope m = ? 6- Find the slope and the yintercept of the line. Write fractional answers in the lowest term. 6y+9x+7=12+9x 7- Determine whether the graphs of each pair of lines are parallel. 4x+6=y 2y=8x-5 thanks for any help on these! Click here to see answer by edjones(7569)