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

Tutors Answer Your Questions about Graphs (FREE)

Question 859229: -11x+y=13 slope intercept form
Click here to see answer by ewatrrr(24785)

Question 859339: How do you graph -y=x-1?
Click here to see answer by stanbon(75887)

Question 859424: Given the quadratic function f(x)= ax^2+bx+10 has a maximum point (2,18).
(a) Without using the differentiation method or drawing a graph, determine the values of a and b.
(b)Sketch the graph of the function f(x). Hence, find the range of f(x) for the domain 0 (< or =) x (< or =) 3
Click here to see answer by Fombitz(32388)

Question 859543: How would I solve this inequality problem
-12 less than or equal to 4x-18< 7
Click here to see answer by rothauserc(4718)

Question 859613: a bridge take 12 cubic yards of concrete to make it 4 inches thick. I need to write a direct variation equation that relates c( cubic yds of concrete) and t (thickness in inches). Then I need to determine how many cubic yds of concrete is needed to make the bridge 6 inches thick.
Click here to see answer by richwmiller(17219)

Question 859689: -15x+7y=1
3x-y=1

Click here to see answer by JulietG(1812)

Question 860271: Write and equation in slope-intercept form of the line satisfying the given conditions.
Perpendicular to -2x + 5y = -6, y-intercept (0,-7). Show your work.
Click here to see answer by josgarithmetic(39617)

Question 860364: Using algebra, find the coordinates of the points at which l intersects C. y=x^2-4 y+3x=0
Click here to see answer by Alan3354(69443)

Question 860402: Solve the system of equations by graphing y=-x+2 6x+y=6
Click here to see answer by ewatrrr(24785)

Question 860577: Write the slope-intercept form of the equation of the line satisfying the given conditions. Through (7, -2); slope �
Click here to see answer by josgarithmetic(39617)

Question 860578: Nuclear Waste: The table gives the heavy metal nuclear waste (in thousands of metric tons) from spent reactor fuel stored temporarily at reactor sites, awaiting permanent storage.
Heavy Metal Nuclear Waste
Year X Waste Y
1995 32 32
2000 42 42
2010 61 61
2020 76 76
Let x= 0 represent 1995, x=5 represent 2000 (Since 2000-1995=5), and so on.
(a) Use (0, 32) and (25, 76) to find the equation of a line that approximates the other ordered pairs. Use the form y= mx+b.
(b) Use the equation from part (a) to estimate the amount of nuclear waste in 2008.

Click here to see answer by josgarithmetic(39617)

Question 860639: hi can someone help me please, "Identify the vertex". show work please.
copy & paste the link to see the graph please, http://prntscr.com/37jw3h
thank you so much.
Click here to see answer by rothauserc(4718)

Question 860659: Write the standard form of the equation of the line through the pair of points (-3,-6) and (-8, 2). Write the equation using only the integers coefficients.
Click here to see answer by ewatrrr(24785)

Question 860860: A line passes through the points (p, a) and (p, �a) where p and a are real numbers. What is the y-intercept? Explain your reasoning if possible, thanks for any help.
Click here to see answer by josgarithmetic(39617)

Question 860858: A line passes through the points (p, a) and (p, �a) where p and a are real numbers. What is the y-intercept? Explain your reasoning if possible, thanks!
Click here to see answer by josgarithmetic(39617)

Question 860948: For each equation, give the x-intercept and the y-intercept. Then graph the equation y-4x=3
Click here to see answer by Fombitz(32388)

Question 860965: Graph the system of equations to determine whether it has no solution, infinitely many solutions, or one solution. If the system has one solution, name it.
2x - y = 4
x + 2 y = 2
Click here to see answer by Fombitz(32388)

Question 860971: can you help me please to simplify these two different expressions.
c⁻⁴/d⁻�

r⁻�/s⁻⁴
Click here to see answer by stanbon(75887)

Question 861029: Can you help me please to simplify these two different exponents.
n�m⁻⁵

k/m⁻�
Click here to see answer by josgarithmetic(39617)

Question 861430: Solve the inequality. 0 > -.5u
The answer is {u|u > 0}. Can you tell me why you do not flip the symbol in this problem?
Click here to see answer by richard1234(7193)

Question 861851: Graph the function.
f(x) = x2 + 3x − 2

(graph)

Estimate the real zeros of the function to the nearest tenth. (If an answer does not exist, enter DNE.)
Click here to see answer by ewatrrr(24785)

Question 861479: How would i solve 4x-5y<15 and graph the answer.
Click here to see answer by Fombitz(32388)

Question 861895: Can you solve and graph the equation:
y=5/4x + 10
Click here to see answer by Fombitz(32388)

Question 861945: Write an equation of a line with the slope of 3 and goes through points (2,4)

Click here to see answer by josgarithmetic(39617)

Question 862065: In May 2003, a gas company had the given rate schedule for natural gas usage in single-family residences.
Monthly service charge- 10.25
1st 60 therms- 0.24228/therm
Therms over 60- 0.23599/therm
Gas Charge- 0.267/therm.
Construct a function that relates the monthly charge C for x therms of gas. There are two pieces of the function: one that represents the total cost when 60 therms or fewer are used, and one that represents the total cost when more than 60 therms are used.
First piece of the function, let x be the total number of therms used, and then add together all the constant charges. What does the first piece of the function look like?
C= 10.25+0.24228x+0.2627x=10.25+.50498 for 0 Using the same method, find the second piece of the function. Recall that the �Therms over 60� service charge needs to be added, which represents the cost of the additional therms over 60.
What does the second function look like?
C= 10.63+.49869x for x>60.
My question is what do you calculate to get 10.63?

Click here to see answer by josgarithmetic(39617)

Question 862180: Graph y = 10 � 5^x
Click here to see answer by Fombitz(32388)

Question 862207: 1.) Write an equation of a line with m= 4, passing through the point (1, -3). Final answer should be in slope-intercept form.
Click here to see answer by Fombitz(32388)

Question 862232: for the equation y-3=3(x+1), i think the slope is 3 and the y intercept is 6 and the slope intercept equation is y=3x+6. Am I on the right track...
Click here to see answer by Fombitz(32388)

Question 862320: input 0,1,3,4 and output 4,3,1,0 what is the domain,range, and cooresponding ordered pairs of this function? and then graph the domain that is given
Click here to see answer by Fombitz(32388)

Question 862593: Find the solution of the equation y = -x - 3 for x = 0.
solution: (____,____)
Please help. Very confused!
Click here to see answer by Fombitz(32388)

Question 862594: I have 2 questions I need help on please..
Find the solution of the equation y = -3x - 1 when x = -5
Solution: ( ___ ,____)
Find the solution of the equation y = -x - 3 for x = 0.
solution: ( ___,____)
Thank you
Click here to see answer by rothauserc(4718)

Question 862619: for the equation y-3=3(x+1), i think that the x intercept is 1 and if i write the equation in standard form it looks like this -3x+y=6. Does this look right?
Click here to see answer by Fombitz(32388)

Question 862628: what is the x intercept of the equation y-3=3(x+1)
Click here to see answer by Fombitz(32388)

Question 862664: Solve the inequality: 2c-4 > -6 and 3c +1 < 13
I would love to know the steps to solve this problem. Thanks!
Click here to see answer by ewatrrr(24785)

Question 862738: write an equation of a line that has a slope of 5 and passes through (-6,8)
Click here to see answer by lwsshak3(11628)

Question 862819: Find the equation of the line that passes through the point(5,-6) and is parallel to the line with equation 5y=x-2
Click here to see answer by ewatrrr(24785)

Question 862920: write an equation of a line that is perpendicular to y=0.25x+6 and passes through (8,9)
Click here to see answer by josgarithmetic(39617)

Question 862921: write an equation that of a line that passes through (8,0) and (3,-8,)
Click here to see answer by josgarithmetic(39617)

Question 863048: y=x+1?
Click here to see answer by Alan3354(69443)

Question 863056: answer for x and y in -3x-7y=-18 and -5x-3y=-4

Click here to see answer by checkley79(3341)

Question 863118: What would 2x + 3y = 6;x + y = 4 look like on a graph? Also explain how to do it, if possible! Thanks.
Click here to see answer by Alan3354(69443)

Question 863118: What would 2x + 3y = 6;x + y = 4 look like on a graph? Also explain how to do it, if possible! Thanks.
Click here to see answer by jim_thompson5910(35256)

Question 863160: f(x)=5^x
Click here to see answer by jim_thompson5910(35256)

Question 863185: Two blocks are dropped , one from a height of 400 feet and the other from a height of 256 feet.
A. complete the two height functions.
h1(t)=-16t^2+ _______ < h2(t)=-16t^2+________ << another blank.
B. Sketch and compare their graphs.
c. Tell when each block reaches the ground.
If you can help me thank you so much! show all work please if some.
Click here to see answer by jim_thompson5910(35256)

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