# 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 148434: solve the inequality. write answer in interval notation. 100 < or equal to 10(5x-2) < or equal to 200 for what values of x is the perimeter of the rectangle from 40 to 60 feet? length:x+3 width: 2x Click here to see answer by stanbon(57940)

 Question 148447: Verify that (-1,3) is a solution to y=(-1/2)x+(5/2) Could you also please show how you got it. Thank you Click here to see answer by nabla(475)

 Question 148456: Assume it costs 25 cents to mail a letter weighing once ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Solve and graph y=L(x). I started by doing y=L(x)+20 then I plugged in points for x. Am I headed in the right direction with this? Click here to see answer by stanbon(57940)

 Question 148455: How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation and put an inequality sign in its place, is there ever a time when the same value will be a solution to both the equation and inequality? Click here to see answer by mangopeeler07(462)

 Question 148518: A Student has scores of 73,79, and 81 on three government exams. What score does she need on a fourth exam to give her an average of 80 or better? Click here to see answer by jim_thompson5910(28696)
 Question 148518: A Student has scores of 73,79, and 81 on three government exams. What score does she need on a fourth exam to give her an average of 80 or better? Click here to see answer by jojo14344(1512)

 Question 148519: Find the midpoint of the line segment PQ P(5,4)Q( 2,8) Click here to see answer by jim_thompson5910(28696)

 Question 148520: If M(-5,2)is the midpoint of segment PQ and the coordinates of P are (-6,8) find the coordinates of Q. Select the correct answer. Click here to see answer by jim_thompson5910(28696)

 Question 148522: Of the points listed below, which lie on the following line? y= -x +34 select all the correct answers 13,17 15,23 10,24 0,34 35,0 0, -34 Click here to see answer by jim_thompson5910(28696)

 Question 148448: Write an equation of the line that passes through (0,-4) and is parallel y=(3/)x+2. Write in slope-intercept form. Thank you :0 ) Click here to see answer by ankor@dixie-net.com(15745)

 Question 148525: Find the midpoint of the line segment PQ P(2, 9), Q (5, 5) Select the correct answer. -3/2, 7 -7/2, 0 7/2, 0 7/2, 7 Click here to see answer by jim_thompson5910(28696)

 Question 148528: If M(-4, 2) is the midpoint of segment PQ and the coordinates of P are (-6,6) find the coordinates of Q. Click here to see answer by jim_thompson5910(28696)

 Question 148529: Of the points listed below, which lie on the following line? y= -x -59 (0, 59) (11, 44) (60, 0) (13, 50) (0, -59) (8,51) Click here to see answer by jim_thompson5910(28696)

 Question 148532: Solve the inequality -9/13 is less than -6/13x Click here to see answer by jim_thompson5910(28696)

 Question 148535: A student has scores of 75, 79, and 81 on three government exams. What score does she need on a fourth exam to give her an average of 80 or better. Let x represent the fourth test score.. Click here to see answer by jim_thompson5910(28696)

 Question 148569: How do you graph and inequality with an exponent or an absolute value? for example y > ( greater or equal to)x2(squared) - 5 ( sorry for the parentheses - but i don't have the right buttons.) Click here to see answer by ankor@dixie-net.com(15745)

 Question 148849: Determine the y-intercept of the given function: f(x)=-2(x-2)(x-1)^2(x+2)^3 a). (0,-32) b). (-32,0) c). (32,0) d). (0,32) Click here to see answer by Alan3354(31487)
 Question 148849: Determine the y-intercept of the given function: f(x)=-2(x-2)(x-1)^2(x+2)^3 a). (0,-32) b). (-32,0) c). (32,0) d). (0,32) Click here to see answer by jim_thompson5910(28696)

 Question 142364: find the equation of the line perpendicular to the line x=4 and passing through the point (4,2). Click here to see answer by Alan3354(31487)

 Question 148852: Use the intermediate valve theorem to determine if the polynomial f(x)=x^3-4x^+3x+2 has a zero Ci in the interval [-3,4]. a). No because f(-3)*f(4)<0 b). Yes because f(-3)*f(4)<0 c). Yes because f(-3)*f(4)>0 d). No because f(-3)*f(4)>0 Click here to see answer by jim_thompson5910(28696)

 Question 148855: Graph the polynomial function: f(x)=x^3+4x^2+x-6 Thank you for your time and effort, it is greatly appreciated Click here to see answer by jim_thompson5910(28696)

 Question 148906: How do you figure out about identifying graph equations with intercepts. Such questions as 6x + 5y + 7 = 0 Click here to see answer by Alan3354(31487)

 Question 148924: how do i get campare and contrast the graphs on y= (x+1)^2 y= (x+2)^2 y=(x+3)2^ Click here to see answer by stanbon(57940)
 Question 148924: how do i get campare and contrast the graphs on y= (x+1)^2 y= (x+2)^2 y=(x+3)2^ Click here to see answer by jojo14344(1512)

 Question 148950: Find the x- and y-intercepts of x + 3y + 2 = 0 and use these intercepts to graph the equation. Click here to see answer by Alan3354(31487)

 Question 148949: Sheri drove southeast from Albuquerque to Roswell and then south to Carlsbad. She averaged 75 mph along the route from Alburquerque to Roswell and averaged 70 mphfrom Roswell to Carlsbad. She covered the entire 220 miles in 3 hours. How long did she take to drive from Alburquerque to Roswell? Click here to see answer by mangopeeler07(462)
 Question 148949: Sheri drove southeast from Albuquerque to Roswell and then south to Carlsbad. She averaged 75 mph along the route from Alburquerque to Roswell and averaged 70 mphfrom Roswell to Carlsbad. She covered the entire 220 miles in 3 hours. How long did she take to drive from Alburquerque to Roswell? Click here to see answer by ankor@dixie-net.com(15745)

 Question 148966: The time to drive from Gotham City to Farmville varies inversely with the average speed. If the drive takes 6.8 hours at 40 mph, then how long will it take at 61 mph? Round to the nearest tenth of an hour. Click here to see answer by mangopeeler07(462)

 Question 149220: What is the equation of a line that passes through the point (14,-9)and has a slope of Zero? Click here to see answer by mangopeeler07(462)

 Question 149228: a triangle has an area a=1/2bh. if the area o a triangle is 6sq. cm , find the solution set of all possible whole number values for b & h. Click here to see answer by nerdybill(7003)

 Question 149234: Solve the inequality (x + 3)(x + 1)(x – 5) < 0 and write the solution set both in interval notation and in set notation. Show work/explanation. Click here to see answer by jim_thompson5910(28696)

 Question 149237: Given , A) Find the domain. B) Determine the vertical asymptote(s). C) Determine the horizontal asymptote or oblique asymptote. D) Find the y-intercept. E) Find the x-intercept(s). Click here to see answer by jim_thompson5910(28696)

 Question 149241: if p & q are positve single digit numbers find all possible solutions of 3p-4q=4 Click here to see answer by ptaylor(2052)

 Question 149264: Can you find the slope and y-intercept of the line? 4x+3y=7-6y Click here to see answer by Fombitz(13828)

 Question 149232: if p & q are positve single digit numbers find all possible solutions of 3p-4q=4 Click here to see answer by checkley77(12569)

 Question 149231: if p & q are positve single digit numbers find all possible solutions of 3p-4q=4 Click here to see answer by checkley77(12569)

 Question 149454: 1)line l goes through (1,3) and is parallel to the line through (4,3) and (-3,1) FInd the slope of l. the answer I got was 2/7 is this correct? 2)line l goes through the point (5,-2) and is perpendicular to the line through (-2,1)and (-4,-2) Find the slope of l the answer I got was -3/2 is this correct? 3)Write the equation y=1/3x-2 in standard form using only integers and a positive coefficent for x The answer I got was x+3y=6 is this correct? 4) A Line that goes through (-1,-3)and has a slope of 4. My answer is y=4x-3 is this correct? Click here to see answer by jim_thompson5910(28696)

 Question 149473: I had a line that goes through (12,-9) and has a slope of -1/3 would it be y=-1/3x+5 Click here to see answer by jim_thompson5910(28696)