Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

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Question 179107: The points )1,3) (2,5) (8,17) (50,101) and (1000,2001) all lie on line M. The points (1,-1) (2,-3) (8,-15) (50,-99) and (1000,-1999) all lie on line N. Form the equations of both the lines and show your work.
Click here to see answer by solver91311(24713)

Question 179098: Fill in the blank to make the folowing statement true
4x+9y=7 and 5x+8y=2 is called a __________________ of linear equations
a) composition
b) solution
c) association
d) pair
e) system
Click here to see answer by Mathtut(3670)

Question 179162: Ok, shhhhhhhhhhh I am a 48 year old, 26 year veteran second grade teacher taking a math class. Yeah, I am wondering the same thing too WHY? I want to learn this but it is really really hard. I had this in class. It made sense then but it does not now. I have tried doing my homework right after the class but I am plain brain dead and so relieved the 8am-5pm class is over I don�t! I have a renewed understanding of students that struggle.
Taking a deep breath, here it is: Let L3 denote the straight line passing through the points p1(1,3) and p2(-5,5).
Find the slope of L3, find the y intercept of L3, the slope y- intercept form of the equation of L3 is_________.
2. Let L4 denote the straight line passing through the points P3(-3,3) and P4(1,-3). Find the slope of L4. Find y intercept of L4. The slope y-intercept form of the equation of L4 is _______.
3. On the coordinate grid, graph L3 and L4. Use visual observation to approximate the point of intersection of L3 and L4. Use algebra to find the exact point of intersection of L3 and L4.
4. Find the equation of the line parallel to L3 that passes through the origin (0,0). Find the equation of the straight line that is parallel to the line L4 an passes through the point (-2,-5). Ok I guess that is my 4 allowed questions :)Thank you in advance.
Click here to see answer by stanbon(75887)

Question 179153: please help me graph this problem
-2x+y=4
Click here to see answer by Mathtut(3670)

Question 179197: Using two points how do I graph this problem: y=3 over 5 x +2 or y=3/5X+2

Click here to see answer by stanbon(75887)

Question 179191: How do we write the equation of a horizontal line? what would be an example
Click here to see answer by Mathtut(3670)

Question 179198: How do I rewrite the following equation in slope-intercept form:
7x+3=-2y
Click here to see answer by Mathtut(3670)

Question 179199: How do I rewrite the following in slope-intercept form:
7y+14x=10
Click here to see answer by Mathtut(3670)

Question 179199: How do I rewrite the following in slope-intercept form:
7y+14x=10
Click here to see answer by Alan3354(69443)

Question 179201: I need help with this graphing problem I tried to do it myself but keep getting it wrong
x-y=3
-6x+6y=17

Click here to see answer by Mathtut(3670)

Question 179210: Graph the inequality.
2x<3x+6
Click here to see answer by Mathtut(3670)

Question 179291: P=b+a+2c, for b
Click here to see answer by stanbon(75887)

Question 179294: A minor league team plays 100 games a season. If the team won 16 more than three times as many games as they lost, how many wins and losses did the team have.
How many games did the team lose ______
How many games did the team win ______
Click here to see answer by stanbon(75887)

Question 179290: Solve the equation
4(3x-6)=12(x-2)
Click here to see answer by Mathtut(3670)

Question 179288: 4(x+4)=6(x-2)
Please help solve
Click here to see answer by Mathtut(3670)

Question 179297: At work one day, Erica Franz received 7 packages. Speedy delivery delivered twice as many as Ralph's Express, while Ralph's Express delivered one more package than SendQuick package. How many packages did each service deliver to Erica.
Speedy Delivery
Ralph's Express
Send Quick
Click here to see answer by stanbon(75887)

Question 179306: c=1/2mq
m=
Click here to see answer by Mathtut(3670)

Question 179304: 9x + 4 = 4x+ 5
Please help solve.
Click here to see answer by Mathtut(3670)

Question 179287: contains the point (-4,7) and is perpendicular to the x axis.
Find the equation of the line that satisfies the given conditions.
Click here to see answer by Mathtut(3670)

Question 179284: Please help solve equation
6x=5x-5
Click here to see answer by Mathtut(3670)

Question 179305: -1/9(x-27)+1/3(x+3)=x-3
Please help solve the equation.
Click here to see answer by stanbon(75887)

Question 179286: Solve for x, graph the solution.
7x+2 < 5x-8
Click here to see answer by Mathtut(3670)

Question 179301: 5/4x+1/8x=3/8+x
Click here to see answer by Mathtut(3670)

Question 179303: A Michigan Orchard made 13,800 lb of taffy apples with approximately 1 lb of taffy mixture for each 77.2 pounds of apples. To the nearest tenth of a pound, how many pounds of apples and how many pounds of taffy were used.
How many pounds of taffy were used to the nearest tenth.
How many pounds of apples were used to the nearest tenth.
Click here to see answer by josmiceli(19441)

Question 179328: how do graph this problem I tried to do it myself but keep getting it wrong

Write the slope-intercept from of the equation of the line passing through the point (6,2) and with slope m = -4
Click here to see answer by Fombitz(32388)

Question 179285: The length of a rectangular boat storage shed must be 4 meters more than the width, and the perimeter must be least 136 meters. What is the range of values for the width.
Exactly 36 meters
At most 36 meters
At least 36 meters
Click here to see answer by Fombitz(32388)

Question 179342: Find the equation, in standard form, of the line perpendicular to 2x - 3y = -5 and passing through (3, -2). Write the equation in standard form, with all integer coefficients.
What equation do you use to solve this?
I was trying y-y1=m(x-x1)
Click here to see answer by Fombitz(32388)

Question 179345: I need help with these graphing problems please
3/7x+5/9y=27
1/9x+2/7y=7

3x-2.5y=7.125
2.5x-3y=7.3125

Click here to see answer by Fombitz(32388)

Question 179381: Solve the equation
0.32(24)+0.05x=0.15(18+x)
Click here to see answer by stanbon(75887)

Question 179382: Two minor league players got a total of 350 hits. Washinton had 20 more hits than Sanchez. Find the number of hits for each player.
Washington ___
Sanchez ___
I don't know how to get started. Please help.
Click here to see answer by Mathtut(3670)

Question 179380: Solve the inequality
-2-4m-m<7m-2

Click here to see answer by Mathtut(3670)

Question 179380: Solve the inequality
-2-4m-m<7m-2

Click here to see answer by monika_p(71)

Question 179332: Dental services. The national cost C in billions of dollars for dental services can be modeled by the linear equation C = 2.85n + 30.52, where n is the number of years since 1990
a) Find and interpret the C-intercept for the line.
b) Find and interpret the n-intercept for the line.

Click here to see answer by Mathtut(3670)

Question 179330: Demand equation. Helen�s Health Foods usually sells 400 cans of ProPac Muscle Punch per week when the price is $5 per can. After experimenting with prices for some time, Helen has determined that the weekly demand can be found by using the equation d = 600 - 40p, where d is the number of cans and p is the price per can.
a) Will Helen sell more or less Muscle Punch if she raises her price from $5?
b) What happens to her sales every time she raises her price by $1?

Click here to see answer by Mathtut(3670)

Question 179404: I do not understand how to solve the compound inequality. Then graph the solution set.
The problem
d-4>3 or d-4≤1
Click here to see answer by vleith(2983)

Question 179415: can someone help me solve this graphing problem please
Find the slope of a line connecting the points whose coordinates are (-1, 2), (-3, -7)

Click here to see answer by jim_thompson5910(35256)

Question 179414: I need help graphing this problem

4x-3y=-12
Click here to see answer by jim_thompson5910(35256)

Question 179312: 9-8y>5-7y+2
4(2y-3)>28
7(5y-2)>6(6y-1)
1- 1 2/3y _> 9/5- y/5 + 3/5
Click here to see answer by jim_thompson5910(35256)

Question 179289: 1/4(8y+4)-34<-1/3(9y-6)
Solve inequality and graph
Click here to see answer by edjones(8007)

Question 179484: can someone please help me graph this problem please.
Find the slope and y-intercept of the line 9x - 3y = 54

Click here to see answer by jim_thompson5910(35256)

Question 179483: Solve each of the following problems by using an inequality.
Ronald wants to sell his car through a broker
who charges a commission of 10% of the selling price.
Ronald still owes $11,025 on the car. Ronald must get
enough to at least pay off the loan. What is the range of the
selling price?
Click here to see answer by josmiceli(19441)

Question 179469: solve by graphing 2/3x-y=-3
3x+y=3
Click here to see answer by Mathtut(3670)

Question 179570: find the x and y intercept of the equation 2x-5y=20
Click here to see answer by checkley77(12844)

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