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

Algebra ->  Algebra  -> Linear-equations -> Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!      Log On

 Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

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

 Question 119175: y=Mx + b 7x + 8y = 12 -7 -7 8y/8=12/8-7x/8 y=-7x+4 Click here to see answer by jim_thompson5910(28504)

 Question 119354: Find the slope of the line through each pair of points 2/3, 4/7 and 2/3, 11/7 Click here to see answer by checkley71(8403)

 Question 119421: how to write an equation in slope intercept form in graph Click here to see answer by heidi(17)

 Question 119420: how to write an equation in slope intercept form in graph Click here to see answer by heidi_1_1(5)

 Question 119501: Find the slope and y-intercept. -4x + 5y = 25 Click here to see answer by jim_thompson5910(28504)

 Question 119522: a line with slope 305and y-intercept (0,4) 9 Click here to see answer by jim_thompson5910(28504)

 Question 119679: You have at least \$30 in change in your drawer, consisting of dimes and quarters. Write an inequality that show the different number of coins in your drawer. Click here to see answer by checkley71(8403)

 Question 119680: Rewrite equation as a function of x -3x+4y=11 Click here to see answer by checkley71(8403)

 Question 119686: 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. Thanks Click here to see answer by josmiceli(9658)

 Question 119678: Solve the system by graphing x+y=4 -x+y=2 Solve the system graphing x-2y=8 x+y=-1 A small company produces both doll houses and sets of doll furniture. The doll houses take 3 hours of labor to produce, and the furniture sets take 8 hours. The labor available is limited to 400 hours per week, and the total production capacity is 100 items per week. Existing orders requare that at least 20 doll houses and 10 sets of furniture be produced per week. Write a system of inequalities representing this situation, where x is the number of doll houses and y is the number of furniture sets. Then graph the system of inequalities. Click here to see answer by ankor@dixie-net.com(15638)

 Question 119756: write an equation of the line that has given slope and y-intercept. m=5,b= -3 Click here to see answer by Caallen2(9)

 Question 119757: write an equation of the line that passes through the given point and has the given slope. (2,3),m=1/2 Click here to see answer by checkley71(8403)

 Question 119721: Use slopes to show that the square with vertices at (-2,5), (4,5), (4,-1), and (-2,-1)has diagonals that are perpendicular. Click here to see answer by checkley71(8403)

 Question 119730: Break-Even Analysis To produce x units of a religious medal costs C(x)=12x+30. The revenue is R(x)=25x. Both C(x)and R(x)are in dollars. a. Find the break-even quantity. b. Find the profit from 250 units. c. Find the number of units that must be produced for a profit of \$130. Click here to see answer by ankor@dixie-net.com(15638)

 Question 119801: if(x, -4) is a solution to the equation 4x - 5y =8, what is the value of x? Click here to see answer by jim_thompson5910(28504)

 Question 119805: if (x, -3.2) is a solution to the equation 4x= 5y-17, what is the value of x? Click here to see answer by jim_thompson5910(28504)

 Question 119818: if (x, -3.2) is a solution to the equation 4x = 5y - 17, what us the value of x? Click here to see answer by checkley71(8403)

 Question 119885: find the slope and y-intercept of y= -2/3x+20 Click here to see answer by bucky(2189)

 Question 119891: find the slope of the line connecting the points whose coordinates are (-1,2), (-3,-7) Click here to see answer by jim_thompson5910(28504)

 Question 119889: find the slope and y-intercept of the line 9x-3y=54 Click here to see answer by jim_thompson5910(28504)

 Question 119887: write the slop-intercept form of the equation of the line passing through the point (6,2) and with slop M= -4. Click here to see answer by jim_thompson5910(28504)

 Question 119896: Write the equation of the line L satisfying the given geometric conditions. 1. L has y-intercept (0, -3) and is parallel to the line with equation= 2/3x+1 2. L has y-intercept (0, 2) and is perpendicular to the line with equation 2x-3y=6. Click here to see answer by jim_thompson5910(28504)

 Question 119731: Body Temperature You may have heard that the average temperature of the human body is 98.6 degrees. Recent experiments show that the actual figure is closer to 98.2 degrees.† The figure of 98.6 comes from experiments done by Carl Wunderlich in 1868. But Wunderlich measured the temperatures in degrees Celsius and rounded the average to the nearest degree, giving 37 degree C as the average temperature.‡ a. What is the Fahrenheit equivalent of 37 degree C? b. Given that Wunderlich rounded to the nearest degree Celsius, his experiments tell us that the actual average human body temperature is somewhere between 36.5 degree C and 37.5 degree C. Find what this range corresponds to in degrees Fahrenheit. Click here to see answer by bucky(2189)

 Question 119742: 1) Solve the following system of linear inequalities by graphing. 3x – y < 2 x + y > 2 2) A small company produces both bouquets and wreaths of dried flowers. The bouquets take 1 hour of labor to produce, and the wreaths take 2 hours. The labor available is limited to 80 hours per week, and the total production capacity is 60 items per week. Write a system of inequalities representing this situation, where x is the number of bouquets and y is the number of wreaths. Then graph the system of inequalities. 3) A small company produces both standard and deluxe playhouses. The standard playhouses take 12 hours of labor to produce, and the deluxe playhouses take 20 hours. The labor available is limited to 800 hours per week, and the total production capacity is 50 items per week. Existing orders require the company to produce at least 10 standard playhouses and 15 deluxe playhouses per week. Write a system of inequalities representing this situation, where x is the number of standard playhouses and y is the number of deluxe playhouses. Then graph the system of inequalities. 4) A home-based company produces both hand-knitted scarves and sweaters. The scarves take 2 hours of labor to produce, and the sweaters take 14 hours. The labor available is limited to 40 hours per week, and the total production capacity is 5 items per week. Write a system of inequalities representing this situation, where x is the number of scarves and y is the number of sweaters. Then graph the system of inequalities. Click here to see answer by ankor@dixie-net.com(15638)