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

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Question 73032: How do I find the slope and y intercept represented by
y=3x+5
Click here to see answer by pradhyumna.kumar@gmail.com(62)

Question 73034: how can I find the y intercept of this equation? x=5
Click here to see answer by stanbon(57395)

Question 73033: If a unique solution does not exist,how will I know if the system is inconsistent or dependent? How do I solve the following system?
5x+2y=30
x-4y=17
Click here to see answer by stanbon(57395)

Question 73035: cynthia bought five blank vhs tapes and four cassette tapes for $28.50.
Charlie bought four vhs tapes and two cassette tapes for $21.00 how can I find the cost of each type of tape?
Click here to see answer by jim_thompson5910(28598)

Question 73046: can i get help simplifing this expression
(2x+y)+(x-y)
Click here to see answer by jim_thompson5910(28598)

Question 73045: Do a linear system always have at least one solution?
Click here to see answer by jim_thompson5910(28598)

Question 73044: if the graph of two linear equations in a system have different slopes will the system always have exactly one solution?
Click here to see answer by jim_thompson5910(28598)

Question 73044: if the graph of two linear equations in a system have different slopes will the system always have exactly one solution?
Click here to see answer by bucky(2189)

Question 73048: One approach for finding the solution for a system of linear equations is to graph two lines on the same coordinate system and the coordinates of the point where the lines intersect is the solution for the system,what is this approach called?
Will it be the intersection method?

Click here to see answer by stanbon(57395)

Question 73069: Twice the square of a positive integer is 35 more than 9 times that integer. What is the integer?

Click here to see answer by jim_thompson5910(28598)

Question 73068: how do i solve twice the square of a positive integer is 35 more than 9 times that integer?
what will the integer be? will it be 7
Click here to see answer by Earlsdon(6287)

Question 73031: What is the integer if twice the square of a positive integer is 35 more than 9 times that integer? how do I get the integer I am lost.
Click here to see answer by ankor@dixie-net.com(15660)

Question 73074: An airplane covered 22 miles of its route while decreasing its altitude by 25,000 feet. Find the slope of the airplane's line of descent. Round to the nearest hundredth. (1 mi-5280 feet).
So far I have m=25000/22mi * 1/5280=25000/116160=2500/11616=1250/5808=625/2904.
I have not idea if I am doing this correctly.
Click here to see answer by stanbon(57395)

Question 73080: 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(15660)

Question 73105: I need help with these equations please. We are to use the standard form in solving x & y intercept. Thanks.....8y+4x=24 5y+10x=30 6y+12x=24 7y+7x=28.
Click here to see answer by checkley75(3666)

Question 73124: Write the equation of the line with slope –5 and y-intercept (0, 5).
A) y = 5x – 5 B) 5x – 5y = 0 C) y = –5x + 5 D) –5y = 5

Click here to see answer by pradhyumna.kumar@gmail.com(62)

Question 73122: Find the slope and the y-intercept.
y = –5x – 4

Click here to see answer by pradhyumna.kumar@gmail.com(62)

Question 73121: Find the slope and the y-intercept.
y = x

Click here to see answer by pradhyumna.kumar@gmail.com(62)

Question 73118: Which of the ordered pairs is a solution for the equation 4x – 2y = 8?
A) (0, 4) B) (–2, 0) C) (–2, –4) D) (0, –4)

Click here to see answer by pradhyumna.kumar@gmail.com(62)

Question 73146: I am having trouble finding the intersection of Y=3/2X+4 and Y=-6+2x
Thanks Julian
Click here to see answer by jim_thompson5910(28598)

Question 73119: Write the equation of the line with slope - 1/2 and y-intercept (0, 3).
Click here to see answer by Earlsdon(6287)

Question 73123: Find the slope and y-intercept.
x = –9

Click here to see answer by jim_thompson5910(28598)

Question 73179: Find an equation for line with slope 1/2 and y-intercept 3
possible answers
a.x/2-y=3
b.-x+2y=6
c.x+2y=6
d.2x-y=3
Click here to see answer by stanbon(57395)

Question 73177: Please help me solve this please
The difference of two numbers is 91. The second is 5 less than 5 times the first. What are the two numbers?
Click here to see answer by ankor@dixie-net.com(15660)

Question 73228: how do I solve -45=-9u?
Di
Click here to see answer by checkley75(3666)

Question 73232: HOW DO U FIND THE SLOPE AND Y-INTERCEPT OF A LINE WRITTEN IN THE Y-FORM?
Click here to see answer by checkley75(3666)

Question 73256: How do you solve this? y=1/3x+3
Click here to see answer by funmath(2925)

Question 73324: I need to solve this problem, horz line intersects a vertical line at (-3,7). Give the equation of each line in standard form. I know standard form is ax + by = c, I also know the equation for these lines is x = -3 and y = 7, is this in standard form if not how do I get it into standard form?
Click here to see answer by bucky(2189)

Question 73404: 1. 3x + y = 6
x - y = 1
2. If x Varies directly as y^2, and x= 20 when y= 2, find x when y= 10.
Click here to see answer by jim_thompson5910(28598)

Question 73429: what does b equal? 1/3(b-4)=1
Click here to see answer by jim_thompson5910(28598)

Question 73626: 1.Find the slope, given the two points
(-7/5, 3/10) and (1/5, -1/2).

2. Write the equation of the line that is parallel to 3x = 4y + 5 and passes through the point (2, -3).
Click here to see answer by funmath(2925)

Question 73704: Write the equation in stadard form of the horizontal and vertical lines that pass through the point:
(-5,4)
(2,4)
Click here to see answer by checkley75(3666)

Question 73752: the question is:
The given ordered pairs are solutions of the same linear equation. Find N.
(0,1), (4,9), (3,N)
The book gives the answer as 7. Fine, but how the heck did they get the answer. I can't find anything in the chapter which gives me a hint about how to solve this question. Help !!
Click here to see answer by jim_thompson5910(28598)

Question 73729: 2x+y-2=0
Click here to see answer by checkley75(3666)

Question 73713: Graph each of the following inequalities.
4x+y less than but equal to 4

Click here to see answer by checkley75(3666)

Question 73718: A line perpendicular to the line 4x-3y=7. It also has the same y-intercept as the line 5x-4y=20. What is the equation of the line?
Click here to see answer by bucky(2189)

Question 73772: Can you explain to me the steps to solve this equation.
It says "State the slope and the y-intercept of the graph of 10x-13y=36."
Click here to see answer by bucky(2189)

Question 73771: How do you state the slope and the y-intercept form for this problem
2x+5y+10
Click here to see answer by bucky(2189)

Question 73791: Please help me. What am I suppose to do?
Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, 2) and is perpendicular to the line with equation 2x-3y=6.

Click here to see answer by funmath(2925)

Question 73793: Please help. I am not sure how to do this.
Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(2,-3) and (2, 4)

Click here to see answer by funmath(2925)

Question 73790: Please help me. What am I suppose to do?
Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, -3) and is parallel to the line with equation y = 2/3x

Click here to see answer by funmath(2925)

Question 73813: Write the equation of the line that passes through point (0, –9) with a slope of 6.
(A)y = –9x + 6(B)–9x + 6y = 0 (C)y = 6x – 9 (D)6y = –9

Click here to see answer by monkeycheeks(3)

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