# 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 320079: could you please show me how i would go about sketching the graph of the function f given by f(x) = -1/2ln(x+1) what steps need to taken? Click here to see answer by Theo(3464)

 Question 320073: trying to solve this inequality .5x + 9>54 Click here to see answer by Fombitz(13828)

 Question 320107: As an ordered pair, find the vertex of the parabola y= x^2 - 6x + 1. I think the vertex is (3,8). Thanks Click here to see answer by Fombitz(13828)

 Question 320130: Find the slope and y intercept F(X)=-9x-8 If I am right then the slope is -9 and the y intercept is -8! Is this right? If not can you help me solve it? Thank you Click here to see answer by Fombitz(13828)

 Question 320150: Decide whether these lines are parallel, perpindicular or neither 5x+2y=10 2x-5y=7 I think that are perpendicular because they are opposites! Can you please help me? Thank you Click here to see answer by CharlesG2(828)

 Question 320132: Identify the equation of the vertical and horizontal asymptotes of the following function: Q(x) = 4x + 7x^2 / x^2 - 7x + 12. Thanks Click here to see answer by Fombitz(13828)

 Question 320152: Find the slopes and the y intercept for each equation in the system 2x+y=100 a) m= b)b= c)m= d)b= e)sketch a graph for the system f)find the point of intersection g)this system of equations has one solution no solution infintite solutions Click here to see answer by Fombitz(13828)

 Question 320147: Determine whether each sysem is consistent or inconsistent by solving it algebraically and graphically. I am having a problem solving fory "y". They say the answer is 9/4 or 2.25 2x-y=1 4x+2y=7 2(2x) - (2y = -1(2) 4x-2y=-2 2(5/8)-y= 1 4x+2y=7 5/4-1=y 8x = 5 x=5/8 Click here to see answer by scott8148(6628)

 Question 320144: Graph the equation using the slope and y intercept. y=10/9x + 8 Thank you Click here to see answer by rfer(12657)

 Question 320196: which of these inequalities has a solid line for its boundary on the graph of the solution -9x-6y>7 7x-9y>6 7x-9y<-6 -9x-6y is less than or = to 7 Click here to see answer by Fombitz(13828)

 Question 320365: Find the equation of the line that contains the point (14, –9) and has slope -3/7 Click here to see answer by nyc_function(2733)

 Question 320364: Find the equation of the line that passes through the points (–5, 15) and (–1, 7). Click here to see answer by nyc_function(2733)

 Question 320362: Find the equation of the line that passes through the points (–3, 7) and (2, –13). Click here to see answer by checkley77(12569)

 Question 320361: Find the equation of the line that passes through the points (0, 0) and (–5, –4). Click here to see answer by checkley77(12569)

 Question 320438: Use the intercepts to graph the equation X+3Y=6 My thought is the first set is going to be (0,2) and the next is going to be (6,0) Is this correct if not can you help me? Click here to see answer by ankor@dixie-net.com(15651)

 Question 320511: write a system of equation and choose the best method to solve each system. solve and check answers. The owner of a health-food store sells a mixture of seeds and nuts. The seeds cos .20 pers ounce, and the nuts cost .30 per ounce. Forty-two ounces of the mixture has a value of \$11.00. How many ounces of seeds and nuts did the owner use in the mix? Click here to see answer by checkley77(12569)

 Question 320508: solve by graphing. check by substituting the approximate solutions into the origingal equations. Round approx. solutions to the nearest tenth. y= 3/4x + 3 y= 2/3x + 1 Click here to see answer by checkley77(12569)

 Question 320464: i need help with these questions. 1. solve the system of equations 2x + 3y = 40 and -2x + 2y =20. 2. solve the system of equations 2r + 2s =50 and 2r - s = 17. 3. solve the system of equations 3r - 4s = 0 and 2r + 5s =23. 4. solve the system of equations 3y + 2z = 12 and y - z = 9. 5. a line in the cartesian plane passes through the points (-2, 4) and (2, -1). what are the rise and the run of the line? Click here to see answer by solver91311(16885)

 Question 320457: Graph the inequality on a plane: 2x+3y ≤6 I tried this but am unsure if x=0 then y=2 2(0)+3(2) ≤6 so the coordinate first would be (0,2) Then if X=3 then Y=0 2(3)+3(0) ≤6 so the next set would be (3,0) Click here to see answer by solver91311(16885)

 Question 320568: WHAT IS THE POINT SLOPE FORM OF AN EQUATION WITH THE SLOPE 3/5 THAT PASSES THROUGH THE POINT 10,2 Click here to see answer by Alan3354(30993)

 Question 320651: what is the parallel and perpendicular slope to this equation including all the steps to find this problem y=-2/3x=6 Click here to see answer by ankor@dixie-net.com(15651)

 Question 320795: solve the following equation for x 5 cos x + 4 = 7 (solve for values of x between 0 and 180 degrees) Click here to see answer by Fombitz(13828)

 Question 320817: If y varies inversely as x^2, and y=2 when x=4, what is the constant of variation? Click here to see answer by stanbon(57342)

 Question 320818: The amount of money that a salesperson makes varies directly as the total amount of sales made. If the salesperson receives \$7,500 for selling a house for \$120,000, how much will he or she make if he or she sells a house for \$150,000? Click here to see answer by stanbon(57342)

 Question 320810: How would you graph the inequality on a plane with the inquality being x+y=2? Click here to see answer by solver91311(16885)

 Question 320836: Determine whether equation is independent, dependent, or inconsistent. x - y = 3 -6 + 6y = 17 Click here to see answer by Alan3354(30993)

 Question 320828: Determine whether the equation is independent, dependent, or inconsistent. y = -4x -7 y = 3x Click here to see answer by Alan3354(30993)

 Question 320838: Solve each system by substitution or addition. 2y - x = 3 x = 3y - 5 Click here to see answer by Alan3354(30993)

 Question 320834: Solve by using addition method. 2x = 2 - y 3x + y = -1 Click here to see answer by Alan3354(30993)

 Question 320833: Solve by using the addition method. x - 2y = -1 -x + 5y =4 Click here to see answer by Alan3354(30993)

 Question 320832: Solve by using the addition method: x + y = 7 x - y = 9 Click here to see answer by Alan3354(30993)

 Question 320831: Solve each system by the substitution method. x + 3y = 2 -x + y = 1 Click here to see answer by Alan3354(30993)

 Question 320830: Independent,dependent, or inconsistent? 2x - y = 4 2x - y = 3 Click here to see answer by Alan3354(30993)

 Question 320829: Independent,dependent, or inconsistent. y = x + 4 3y - 5x = 6 Click here to see answer by Alan3354(30993)

 Question 320837: Equations Involving Fractions or Decimals: Solve each system by the addition method. 3x - 2.5y = 7.125 2.5 - 3y = 7.3125 Click here to see answer by checkley77(12569)