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

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Question 875364: By graphing, find the ordered pair that is a solution of both equations.
Y-4x=0
Y+2x=-6
Click here to see answer by Fombitz(32388)

Question 875643: solve the two linear equations. and solve the system equations by the substitution method.
4x+3y=12
y=2x-6
Click here to see answer by Alan3354(69443)

Question 876018: solve the inequality ,x rational
Click here to see answer by Edwin McCravy(20055)

Question 876028: Dear Math Tutor,
The function f is defined by f(x). Find the two values of x for which f(x)=f(4)
I worked out f(4) = 9, then I tried x^2-3x+5=9 and I couldn't get anywhere
With gratitude,
Nats
Click here to see answer by rothauserc(4718)

Question 876066: Does the point (1,2) satisfy both of the following equations? Show work
2x-3y=-4 and -3x +y=-1
Click here to see answer by Alan3354(69443)

Question 876062: What is the distance between the points (-3,8) and (4,2) to the nearest tenth?
Click here to see answer by jim_thompson5910(35256)

Question 876061: A line on a coordinate grid passes through the points (-1,-3) and (4,5). What is the slope of a line perpendicular to this line? Write the answer as a fraction in lowest terms
Click here to see answer by reviewermath(1029)

Question 876077: (4,1) (-3,-3) find the slope
Click here to see answer by jim_thompson5910(35256)

Question 876092: -3x + 7y = 63 what is the y-intercept and the x-intercept
Click here to see answer by Alan3354(69443)

Question 876441: i need to graph .29<=y<=2.04 on a number line. How do I do that?
Click here to see answer by jim_thompson5910(35256)

Question 876436: 3x=-9...so I have x=-3. I am trying to find the x and y intercepts to plot on a graph.
x (-3,0) what would the y intercept be?
Click here to see answer by Alan3354(69443)

Question 876450: i need to solve and graph the compound inequality if possible on a number line
-6<=3(x+5)<=18 please help
Click here to see answer by jim_thompson5910(35256)

Question 876487: A plane travels 300 miles against the wind in five hours, then turns and travels 330 miles with the wind in three hours.Find the speed of the wind and the speed of the plane .
Click here to see answer by mananth(16946)

Question 876489: An old computer takes 6 hours longer to process the company payroll than does a new computer. If it takes the two computers 4 hours to process the payroll working together, how long does it take each take computer working alone?
Click here to see answer by mananth(16946)

Question 876444: i need to write an inequality for a graph that is shaded on the left side of these points in quadrant II and quadrant III (-5,0), (-5,-1),(-5,1), (-5,2),(-5,-2) and so on up and down. What would that inequality be?

Click here to see answer by mananth(16946)

Question 876525: A boat that travels 10mph in still water takes 1 hour longer to travel 24 miles against the current than it does to paddle the same distance with the current . Find the speed of the current
Click here to see answer by mananth(16946)

Question 876632: i need to determine if this equation is true or false and if its false i need to correct the first part If |y+8|+2=6, then y+8=+_4 the plus sign is showed to be over the underline but i can't get my computer to line it up
Click here to see answer by ewatrrr(24785)

Question 876741: Solve each inequality and express the solution set using interval notation.
-3(3x+2)-2(4x+1) is greater or equal to 0.
I have done my math twice and my answer keeps coming up to: [x greater or equal to 0), however the answer in my book says (-x, -8/17].
Here is my work:
-9x-6-8x-2 is greater or equal to 0.
-6+x-2 is greater or equal to 0.
-4+x is greater or equal to 0.
[x is greater or equal to 4).
Click here to see answer by richard1234(7193)

Question 876677: Please help me graph this eqaution

Click here to see answer by ankor@dixie-net.com(22740)

Question 876900: I need to graph the following inequality y-1>-1(x+2). Please help
Click here to see answer by rothauserc(4718)

Question 877126: trying to help child, not cannot remember this stuff, please help!!!
3x+12=y+3x

Click here to see answer by josgarithmetic(39617)

Question 877128: Question 876949: Problem 1). y=-3x-12
Problem 2). y=2x+10
Problem 3). x-2y=8
Problem 4). 4x+5y=20
Problem5). 6x+7y=12
I have to find x & y intercept and then graph it. Please help struggling.
Click here to see answer by rothauserc(4718)

Question 877081: i need to graph the following inequality
x+y<=4
please help
Click here to see answer by rothauserc(4718)

Question 877277: f(x) = -4x2 + 7x + 6.
Click here to see answer by Alan3354(69443)

Question 877410: I'm in year 9, doing graphing and finding gradient, etc. This question refers to finding gradient, although its kinda just algebra.
The question is: Find the missing number if the gradient joining points (0,2) and (1,x) is 4.
This is what I have tried:
2=(5-9)/(x-1)
2=-4/(x-1)
3=-4/x
3x=-4
x=3/4

However, the answer in the book is -1.
I think that I have made a mistake regarding algebra or writing out the correct formula.
I would love if you could tell me where I have gone wrong, and any implications for this type of math in the future. I have got other similar questions correct, and am thinking that I have probably made a silly mistake.
Thankyou in advance.
Click here to see answer by josgarithmetic(39617)

Question 877619:
Click here to see answer by lenny460(1073)

Question 877792: find the equation for a line parallel to y=2x-3 with y-intercept (0,4)
Click here to see answer by Fombitz(32388)

Question 877823: Find the average rates of change over the interval [2,5] for the functions shown.
Function A : Copy & paste the link to see please (it's a graph) Link : http://prntscr.com/3n75h3
show work please! thank you.
Click here to see answer by Fombitz(32388)

Question 877841: Solve the following linear equations (use the substitution method),
giving the solution as a coordinate pair in the form (x,y).
y = 9x + 9
y = 4x - 9
Answer: (-18/5,117/5) or (-3 3/5, -23 2/5)
Click here to see answer by Fombitz(32388)

Question 878019: 5(p+2) - 2(p -1) > or equal to 7p + 4
I really need someone to explain this problem. Thanks.
Click here to see answer by Fombitz(32388)

Question 878102: What is the graph of 2x-y=6
Click here to see answer by Fombitz(32388)

Question 878212: 4x-1>-5 and 2x-2<8 Graph the solution on the number line. how do i graph this on a number line
Click here to see answer by Fombitz(32388)

Question 878374: 5. Use the graph below to answer the question that follows.
https://www.connexus.com/content/media/913045-7302013-111613-AM-2045783568.jpg
Which statement describes the speed of the remote-control car over time? (1 point)
The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 5 mi/h in the next 2 seconds, and then remains at 5 mi/h for the last 5 seconds.
The speed of the car increases from 4 mi/h to 2 mi/h in the first 3 seconds, decreases to 5 mi/h in the next 2 seconds, and then remains at 5 mi/h for the last 5 seconds.
The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 6 mi/h in the next second, and then remains at 6 mi/h for the last 6 seconds.
The speed of the car decreases from 4 mi/h to 2 mi/h in the first 3 seconds, increases to 5 mi/h in the next 5 seconds, and then remains at 5 mi/h for the last 2 seconds
i think it is A please check my answer
Click here to see answer by Fombitz(32388)

Question 878365: 4. A car traveling at 46 mi/h slows to a speed of 23 mi/h in 5 seconds. It maintains that speed for 5 seconds and then slows to a stop after 5 more seconds. Which graph shows the car�s speed over time? (1 point)
https://www.connexus.com/content/media/869973-8192013-32527-PM-830501555.jpg
https://www.connexus.com/content/media/869973-8192013-32527-PM-1818913237.jpg
https://www.connexus.com/content/media/869973-8192013-32527-PM-2051767075.jpg
https://www.connexus.com/content/media/869973-8192013-32527-PM-1968340796.jpg
Click here to see answer by Fombitz(32388)

Question 878689: write an equation of the line that passes through the given point and is parallel to the given line and perpendicular to the given line.
(-2,3), y=-2x-3
Click here to see answer by richwmiller(17219)

Question 878761: Graph.
1.f(x) = |x| + 4

1.f(x) = |x + 4|

1.f(x) = |x � 4|

1.f(x) = |x| � 4

Click here to see answer by ewatrrr(24785)

Question 878971: for this point (0,3) which of these inequalities is a solution
y>-1,2x+y < 10, y <= 3/2x+3
Click here to see answer by jim_thompson5910(35256)

Question 878914: g(x)=x^2-3x+1
(fog)(x)= 2x^2-6x-1
Find f(x)
Click here to see answer by josgarithmetic(39617)

Question 879072: for y<=3/2x+3 is point (5,0) and (0,-4) a solution
Click here to see answer by Fombitz(32388)

Question 879319: Write the equation of the line passing through (�6, �3) and (�6, �6).
Click here to see answer by jim_thompson5910(35256)

Question 879305: Museum passes cost $5 for adults and $2 for children. One day the museum sold 1820 passes for $6106. how many of each type or sold

Click here to see answer by JulietG(1812)

Question 879427: Dear Math Tutor
Please help me with: The line l passes through the points A(4,8) and B(10,26). Show that and equation for l1 is y=3x-4.
The line l1 intersects the line l2, which has an equation y=5x+4, at C. Find the coordinates of C.
With gratitude,
Nat
Click here to see answer by ewatrrr(24785)

Question 879462: 6x + 3y > 24 graph
Click here to see answer by Fombitz(32388)

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