# 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 117822: Find the slope of the line passing through the points (-1,7) and (3,3). Click here to see answer by jim_thompson5910(28715)

 Question 117834: Write the equation of the L satisfying the given geometric condition. L has y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1 Click here to see answer by jim_thompson5910(28715)

 Question 117836: write the equation of the line passing through each of the given pairs of points. Write results in slope-intercept form. (-1,3)and (4,-2) Click here to see answer by jim_thompson5910(28715)

 Question 117881: Write the equation of the line passing through the given points with the indicated slope. Give results in slope-intercept form, where possible. (0,5) m=-3/5 Click here to see answer by stanbon(57967)

 Question 117885: Are the following lines parallel, perpendicular, or neither? L1 with equation x-4y=12 L2with equation 4x+y=4 Check their slopes,m: y=mx+b If m1 and m2 are equal, then the lines are parallel. If m1 and m2 are negative reciprocals, then the lines are perpendicular L1 = -4y=-x+12-->y=1/4x-3--->m1=(1/4) L2 = y = -4x +4--->m2=(-4) Since m1 and m2 are negative, reciprocals the lines are perpendicular. Hope that helps. misscrt Click here to see answer by misscrt(37)

 Question 117884: Write the line equation of the line which has y-intercept (0,5) and is perpendicular to the line with equation y=-3x+1(y = mx + b). m1 is the negative reciprocal of m=-3, which is 1/3. You were given (0,b)=(0,5) Plug the values for m1 and b into the equation of a line: y = mx + b y=1/3x+ 5 So, this is the line. Click here to see answer by misscrt(37)

 Question 117882: In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 items will cost \$10,000 to produce and that 300 items will cost \$22,000 to produce. Find the equation that relates C and x. Click here to see answer by josmiceli(9817)

 Question 117917: solve 8x - 11 = 2x + 1 Click here to see answer by solver91311(17077)

 Question 117916: solve 4x/2 - 1 = 6x/2 - 4 First simplify the fractional terms by division: 4x/2 =2x 6x/2 =3x Rewrite the equation: 2x - 1 = 3x - 4 Combine like terms: First subtract 3x from both sides of the equation 2x-3x -1 = 3x-3x -4 -x-1= -4 Now add 1 to both sides -x-1+1 = -4+1 -x=-3 Find x by dividing both sides by -1 -x/-1 = -3/-1 x = 3 Click here to see answer by misscrt(37)

 Question 117835: Write the equation of the L satisfying the given geometric condition. L has y-intercept (0,2) and is perpendicular to the line with equation 2x-3y=6. Click here to see answer by checkley71(8403)

 Question 117349: these two points determine a line: (0,3) (2,5) give three points also on this line Click here to see answer by BrittanyM(80)

 Question 117794: Floor plans for a building have the four corners to a room located at points (2,3), (11,6), (-3,18) and (8,21). Determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-3,18). Click here to see answer by checkley71(8403)

 Question 117979: Find the equation, in slope-intercept form, of the line that passes through the points (5,6) and (-7,3) Click here to see answer by checkley71(8403)

 Question 117980: Find the equation, in standard form, with all integer coefficients, of the line perpendicular to 3x-6y+9 and passing through (-2,-1) Click here to see answer by stanbon(57967)
 Question 117980: Find the equation, in standard form, with all integer coefficients, of the line perpendicular to 3x-6y+9 and passing through (-2,-1) Click here to see answer by checkley71(8403)

 Question 117989: 4x +2y = 4 3x + y = 4 Click here to see answer by whit838(1)

 Question 117991: x = 4 - 4y -x = 2y = 2 Click here to see answer by jim_thompson5910(28715)

 Question 117992: -x + y =2 x + y =4 Click here to see answer by jim_thompson5910(28715)

 Question 117993: 2x + y = 4 3x - 2y = -1 Click here to see answer by jim_thompson5910(28715)

 Question 117997: Find the equation of each line. Write each answer in clope intercept form. The line is parallel to -3x + 2y = 9 and contains the point (-2,-1). I got 2y=-3x + 9 which is slope intercept form answer I got was y= 3/2x + 4 which is incorrect Click here to see answer by bucky(2189)

 Question 117996: Find the equation of the line that goes through the given point and has the given slope. Write the answer in slope-intrecept form. (-1,-5),-8 this is what I did -5y=-8x + -1 I got b= -13 which is incorrect Click here to see answer by bucky(2189)

 Question 118003: Write the equation of each line. Give the answer in slope-intercept form. The line through (-1,-2)with slope of 3/7 The answer is y=3/7x-11/7 How do I work this problem to get that answer? Click here to see answer by jim_thompson5910(28715)

 Question 118013: Write the equation of each line. Give the answer in standard form using only integers as the coefficients. The line through (3,4) that is parallel to the line 5x+3y=9 The answer is 5x+3y=27 How do I work the problem to get the above answer? Click here to see answer by jim_thompson5910(28715)

 Question 118019: Write the equation of the line which has y-intercept (0,5) and is perpendicular to the line with equation y=-3x+1 Click here to see answer by jim_thompson5910(28715)