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

Tutors Answer Your Questions about Graphs (FREE)

Question 348857: What is a mapping diagram?
Click here to see answer by stanbon(75887)

Question 348871: jim claims that the graph of y=ax2+bx=c opens downward. When is this statement true?
Click here to see answer by Fombitz(32388)

Question 348868: HOW WOULD YOU TRANSLATE THE GRAPH OF Y=X2 TO PRODUCE THE GRAPH OF Y=X2+3?
Click here to see answer by Fombitz(32388)

Question 349047: graph 2y=-6x+20
Click here to see answer by mananth(16946)

Question 349094: Graph the equation using the slope and the y-intercept
y=10/3x+7
Click here to see answer by Fombitz(32388)

Question 349031: what is the cost c of a telegram of 18 words is the cost f of the first 10 words plus the cost a of each additional word.
Click here to see answer by Fombitz(32388)

Question 349137: solve the compound inequality. graph the solution set and give the solution in interval notation.
x≤3 and x≥ -1
Click here to see answer by CharlesG2(834)

Question 349139: solve the compound inequality. graph the solution set and give the solution in interval notation.
x≤3 and x≥ -1
Click here to see answer by ewatrrr(24785)

Question 348233: solve the inequality. write the solution set in interval notation and graph it.
12x-14>2(5x-5)
Click here to see answer by nyc_function(2741)

Question 349190: sketch the graph of y=-f(x) (-5,-3)
Click here to see answer by Fombitz(32388)

Question 349233: how do u solve in point slope or slope intercept form?
x-intercept = -2 and y-intercept = 4
Click here to see answer by Fombitz(32388)

Question 349251: How do you solve f(x)= the square root of x minus 8
Click here to see answer by Fombitz(32388)

Question 349251: How do you solve f(x)= the square root of x minus 8
Click here to see answer by nyc_function(2741)

Question 349162: putting in standard form equation the circle with the center (-1,3) with a y=1
book has answer of 4 but not sure how to solve?
Click here to see answer by Alan3354(69443)

Question 349456: plot the following points on the axis (3,0),(0,-6),(2,7),(-4,-5)
Click here to see answer by Fombitz(32388)

Question 349529: Beth has two part-time jobs: tutoring and law mowing. She wants to work NO MORE than 12 hours per week; at least 4 hours tutoring and not more than 6 hours mowing. She makes $5/hour tutoring and $6.50/hour mowing. What combination of hours would make her the most money?
Identify the constraints:
Graph this on an x-y axis
Write an objective function
Click here to see answer by Theo(13342)

Question 349478: Find the slope of a line parallel to the given line and a line perpendicular to the given line with the line containing (2,-4) and (5,1)
Click here to see answer by Fombitz(32388)

Question 349683: I do not understand the concept for inequalities. From where do I find the numbers to add, subtract, divide, or multiply for the answer. 5y+2 is equal to or less than -1 +4y. I am in my third week of a nine week course and already failing.
thank you for any assistance you can provide.
helen hicks
Click here to see answer by Alan3354(69443)

Question 349725: In the following questions, determine which numbers are solutions to the given equality.

#21 x > -8 a. 0 b. -8 c. -7 d. 7
#22 x-6 > 0 a. 0 b. 6 c. -6 d. 5
#23 8x < 24 a. 3 b. -3 c. 0 d. 8
#24 -8x > 24 a. 3 b. -3 c. 0 d. 8
#25 -8x < -24 a. 3 b. -3 c. 0 d. 8

Click here to see answer by ewatrrr(24785)

Question 349751: you are planning to spend no less than $6,000 and no more than $10,000 on your landscape project. write an inequality that demonstrates how much money you will are willing to spend on the project.
Click here to see answer by solver91311(24713)

Question 349829: is (8,-3) a solution of 4x+5y=-5 and what are the steps to do it?
Click here to see answer by checkley77(12844)

Question 349873: I am stuck on algebra word problems that are not of adding. For example:
In 2006, approximately 125 billion email messages were sent each day. The number of spam messages was about four times the number of non-spam messages. How many of each type of message was sent each in 2006?
Click here to see answer by edjones(8007)

Question 350095: What is 6(x-2)-2(x+3)>0? I need answer and graph please.
Click here to see answer by Fombitz(32388)

Question 350111: Graph the equation and idenify the y intercept.
y=4x-3
I have unterstood for the most part i just am not understanding how they are getting the points for the variable x
Click here to see answer by Fombitz(32388)

Question 350174: -2x - y = 0
Graph using the slope and y-intercept
Click here to see answer by ewatrrr(24785)

Question 350076: Please help me solve this equation: Use pascal's triangle to determine the binomial expansion for the following and simplify the final expansion.
(a)
(b)
Click here to see answer by Fombitz(32388)

Question 350175: find the y and x intercepts then graph
f(x) = -2 - 7x
Click here to see answer by ewatrrr(24785)

Question 350316: 7y-10<6y-9
Click here to see answer by edjones(8007)

Question 350426: a) Solve 5x^2=15
b) Find the x-intercepts of f(x)=5x^2-15
What are the solutions? X= (type exact answer with radicals as needed)
What are the x-intercepts? (type ordered pair) (or no x-intercepts)
Click here to see answer by Alan3354(69443)

Question 350461: (1,4) (3,5) y=
Click here to see answer by tjhd(7)

Question 350706: Please tell me how do you know which way to shade when graphing the region described by an inequality such as: y<-1/2x?
Click here to see answer by ewatrrr(24785)

Question 350725: graph the equation and identify the y-intercept y=2x-8
Click here to see answer by ewatrrr(24785)

Question 350841: find the x-intercept and the y-intercept for the graph of the equation.
x+2y=10
Click here to see answer by stanbon(75887)

Question 350839: If the graph of the line x-2y=-1 in the xy-plane is reflected across the x-axis, which of the following is an equation of the resulting reflection?
Click here to see answer by stanbon(75887)

Question 351025: Marks: 1
Find the equation passing through the given y-intercept with the given slope.
(0, -6), m = -3
Choose one answer.
A. y = �6x � 3
B. �6x � 3y = 0
C. y = �3x � 6
D. �3y = �6
Find the equation passing through the given point with the given slope.

(4, -17), m = -2
Choose one answer.
A. y = -2x � 9
B. y = -2x � 17
C. -2x + 4y = -17
D. 4x � 2y = -9
Marks: 1
Find the slope and the y-intercept for the following equation.

3x + 2y = 6
Choose one answer.
A. m = -3/2, b = -3
B. m = -3/2, b = 3
C. m =3/2, b= -3
D. m =3/2, b=3
Marks: 1
Find the slope and the y-intercept for the following equation.

x - 3y = 9
Choose one answer.
A. m = -1/3, b = -3
B. m = -1/3, b = 3
C. m =1/3, b= -3
D. m =1/3, b=3
Find the x-intercept and the y-intercept for the following equation

5x � 2y = -10
Choose one answer.
A. (0, 5 ); ( -2, 0)
B. (0,-5 ); (2 , 0)
C. (0, -2 ) (5, 0)
D. (0,2 ); (-5, 0)
Find the x-intercept and the y-intercept for the following equation

3x + 7y = -21
Choose one answer.
A. (0, 7 ); ( -3, 0)
B. (0,-7 ); (-3 , 0)
C. (0, -7 ) (3, 0)
D. (0,-3 ); (-7, 0)
Marks: 1
Write an equation for the line passing through the following given points.

(-2, 6), (3,1)
Choose one answer.
A. y = -3x + 4
B. y = x � 4
C. y = -x + 4
D. y = 5x + 4
Marks: 1
Write an equation for the line passing through the following given points.

(-3, 4), (-2,1)
Choose one answer.
A. y = -3x - 5
B. y = 1/3x � 5
C. y = -1/3x + 5
D. y = 3x + 5
Write an equation for the line passing through the following given points.

(0, 2), (1, �)
Choose one answer.
A. y = -4/5x + 2
B. y = 4/5x � 2
C. y = -5/4x + 2
D. y = 5/4x -2

Marks: 1
Write an equation for the line parallel to the line 6x + 3y = -8 through the origin.
Choose one answer.
A. y = -2x +0
B. y =2x +0
C. y = -1/2x +0
D. y = 1/2x +0

Click here to see answer by Alan3354(69443)

Question 351056: Write the slope intercept equation of the line passing the pairs (0,5) and (2,0).
I have determined that he slope is 5/2, but I am haveing difficulties od determining the actual equation. I have come up with the following: y = 5/2 + 5.
Any guidance willbe greatful.
Click here to see answer by Alan3354(69443)

Question 351281: 1.a piece of wire 44cm long is cut into two parts and each part is bent to form a square.if the total area of two square is 65sq.cm.find the perimeter of two square.
2.a particle is projeced from ground level so that its height above the groungd afer t seonds is given by 20t-5t^2m. after how any seconds is it 15m above the ground?can you explain briefly why there are two possible answers.
Click here to see answer by solver91311(24713)

Question 351551: The lines 2x + ay + 2b = 0 and ax - y - b = 1 intersect at the point
(-1, 3). What is 2a + b?
Click here to see answer by Fombitz(32388)

Question 351692: given f(p) = p^2 - 4p + 7 and the transformation y = -f(p-2) + 5
find the formula for this transformation and describe how this transformation moves the original function, f(p)

thanks

Click here to see answer by jim_thompson5910(35256)

Question 351810: Solve for the following items:
a. The point on the x-axis that is equidistant (equal distance) from (8,4) and (-4,2).
b. The distance between the points (8,2) and (16,2).
c. The distance between the points (2,6) and (12,8).
d. The midpoint between (8,2) and (10,6)
e. The midpoint between (-4, 2) and (-5, 3)

Click here to see answer by solver91311(24713)

Question 351945: (-2,-5) (2,7)
Click here to see answer by Alan3354(69443)

Question 352022: how to sketch the graph of the line 3x+2y=6
Click here to see answer by Alan3354(69443)

Question 352070: 1/2x+1/5=3/5x-1/10
Click here to see answer by checkley77(12844)

Question 352082: A farmer has 25days to plant cotton and soybeans . The cotton can be planted at a rate of acres per day , and the soybeans can be planted at a rate of 12 acres a day . The farmer has 275 acres available . If the profit for soybeans is $16 per acre and the profit for cotton is $25 per acre , how many acres of each crop should be planted to maximize profits ?
Click here to see answer by Edwin McCravy(20055)

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