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

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Question 196111: Hello.
I'm having a hard time getting this answer correct on homework
Solve the equation for x.
a - 3 [b - 5(c - x)] = 2
x =

thanks!

Click here to see answer by anantha(86)

Question 196181: Hi, Just wondering if anyone can help with the following question, im struggling a bit.
For the given vectors find: (a) scalar product and
b) angle between the vectors.
a = 2 i − j + 3 k ,
b = −i − 7j .
Click here to see answer by Edwin McCravy(20055)

Question 196291: Mindy Mixed walnuts that sell for $1.50 a pound with peanuts that sell for $3.00 a pound. She wants to make a 10-pound mixture to sell for $3.60 a pound. How many pounds od each should she use?
Click here to see answer by Alan3354(69443)

Question 196403: Please graph this equation.

y=-2x+3

thank you
Click here to see answer by checkley77(12844)

Question 196479: Please show me step by step how to graph this problem. Such as start point 3 and go up 2 over 3. That would help

The equation is y=-2x+3

thank you
Click here to see answer by vleith(2983)

Question 196601: solutions of ineqalities
6-5> 1- 4x
Click here to see answer by checkley77(12844)

Question 196699: The following data presents the examination marks of 10 students in a class:
87, 71, 80, 84, 83, 81, 86, 90, 99, 89.
a. complete the table below
Interval Number(frequency)
69-76 ____________
77-84 ____________
85-92 ____________
93-100 ____________
b. Draw a frequency histogram based on the data.
c. The median is contained in which interval?
Click here to see answer by stanbon(75887)

Question 196793: Graph
-3x-2y=6
x=2-2/3y
Click here to see answer by Mathtut(3670)

Question 196992: Which 2 are parallel when graphed?
a)y=1/3x+5 - y=1/3x-1
b)y=2x-1 - y=-2x+5
c)y=3x+4 - y=1/3x+1
d)y=4x-1 - y=1/4x+3
e)y=x+3 - y=5x+3
I couldnt find where to put this
its from exam review
Thanks!
Click here to see answer by stanbon(75887)

Question 197042: Can you help me graph this inequality?
3x - 2y < 6
Click here to see answer by fminor69(1)

Question 197041: Can you help me graph this inequality?
3x - 2y < 6
First find out the boundaries of 3x-2y<6
Consider 3x-2y=6--------(1)
Use x and y intercepts,
Put x=0 in equation (1)
-2y=6
==> y=-3
So y intercept = (0,-3)
Now put y=0 in equation (1)
3x=6
==> x=2
x intercept = (2,0)
Since the inequality is <, Plot the graph by dotted line using x and y
intercepts.

substitute (0,0) in 3x-2y<6
==> 0<6 is true
So solution is the portion of the graph including (0,0)

Click here to see answer by mathsteacher(28)

Question 197336: USE THE GRAPH OF F(X)=EX TO OBTAIN THE GRAPH OF G(X)=-EX

QUESTION IS WHAT DOES THIS GRAPH LOOK LIKE?
Click here to see answer by solver91311(24713)

Question 197426: Find the vertex of the given parabola. Give all values correct to 3 decimal places.
y = 4x2 - 5x + 4
not sure what I am doing wrong on this I am using -b/2a to get one vertex and then using the quadratic formula and putting my answer from the first set (x) and it is not coming out correctly. can someone help and put me on the right track
thanks

Click here to see answer by stanbon(75887)

Question 197441: Please show mw step by step how to graph this.

Such as what point to start on...start 3 and go up 3 over 2..something like that

the equation is y= 2 over 5x +1

thank you
Click here to see answer by jim_thompson5910(35256)

Question 197445: Please show me step by step to graph

3x+2y=6

thank you
Click here to see answer by jim_thompson5910(35256)

Question 197445: Please show me step by step to graph

3x+2y=6

thank you
Click here to see answer by Edwin McCravy(20055)

Question 197465: which statement is true of the graph of the equation x= -4?
1)It has a slope of 1.
2)It has a slope of -4.
3)It is parallel to the x-axis.
4)It is parallel to the y-axis.
Click here to see answer by edjones(8007)

Question 197467: What would be the solution set of x�+3x-10=0?
Click here to see answer by edjones(8007)

Question 197452: Draw the graph of the following function for 0≤x≤2π. Please state the period and amplitude of the final function
y= 3cos (2x+π∕2)-2

Click here to see answer by Alan3354(69443)

Question 197492: The equation for a water line is y= -2/3x -12=
Under the -2 is a horizontal line to look like a fraction I couldn't put an underline under the -2.
Suppose you want to put a pink flamingo lawn ornament in your backyard, but you want to avoid placing it directly over the water line, in case you need to excavate the line for repairs in the future. Could you place it at the point
(-4,-10)?
Thankyou,
How would I solve this?
Click here to see answer by Alan3354(69443)

Question 197540: a) On the same set of coordinate axis, graph the following system of inequalities.
y is less than or equal to 3x+4
y+x is greater than 2
b) Write the coordinates of one point that is in the solutions set of both inequalities.
Click here to see answer by vleith(2983)

Question 197525: Which statement is true of the graph of the equation x=4?
1) It has a slope of 1.
2) It has a slope -4.
3) It is parallel to the x-axis.
4) It is parallel to the y-axis.
Click here to see answer by vleith(2983)

Question 197595: the slope-intercept form of the line through (1,2) and (-3,1) is
Click here to see answer by vleith(2983)

Question 197656: Which statement is true of the graph of the equation x=-4?
1) It has a slope of 1.
2) It has a slope of -4.
3) It is prallel to the x-axis.
4) it is parallel to the y-axis.
Click here to see answer by stanbon(75887)

Question 197673: How would you graph this system of inequalities:
y>2x-4
x+3y<-3
Click here to see answer by stanbon(75887)

Question 197727: Calculate temperature in Fahrenheit if the temperature in celsius is -60C
F=(9/5)C+32.
I tried to solve the problem using .55 instead of 5/9 but my answer came out wrong.
Click here to see answer by nerdybill(7384)

Question 198021: Which ordered pair is a solution of the following system of equations?
x+y=5
x-y=-1
1.(2,-3)
2.(2,3)
3.(3,-2)
4.(3,2)

Click here to see answer by jim_thompson5910(35256)

Question 198017: can't figure out how to solve problems like 2x+6y=12 finding three ordered pairs, I don't know where to begin
Click here to see answer by solver91311(24713)

Question 198017: can't figure out how to solve problems like 2x+6y=12 finding three ordered pairs, I don't know where to begin
Click here to see answer by scott8148(6628)

Question 198037: Graph y
Click here to see answer by jim_thompson5910(35256)

Question 198030: Would you please help me with this multiple choice question:

What is one solution of the accompanying system of equations?
y= -x^2 + 5 and y= -0.5x^2 + 3
a) (3,5) b) (0,5) c) (-2,1) d) (0,3)

Thank you!

Click here to see answer by solver91311(24713)

Question 198015: What is the slope of the graph of y=-3x+11?
Click here to see answer by solver91311(24713)

Question 198154: The value of a certain car decreases at the rate of 300 dollars each month after being purchased new. Suppose that the car is worth 17,000 when it is 2 years old.
a. Determine a linear function on the axes provided. Label appropiately
c. Use this model to determine the value of the car after 4 years.
d. Determine how long after purchase the car's value will be half of its selling price.
Click here to see answer by arallie(162)

Question 198104: 6x+8y=24
Click here to see answer by arallie(162)

Question 198215: The graph of 3x-y=6 passes through the point
1.(1,7)
2.(5,9)
3.(6,-6)
4.(4,-6)
Click here to see answer by josmiceli(19441)

Question 198183: graph this function?
y=4(x+3)squared + 1

Click here to see answer by jojo14344(1513)

Question 198286: graph the line
y = x + 1
Click here to see answer by jim_thompson5910(35256)

Question 198365: I can't seem to figure out this question, I have been working on it for a long time and it's starting to frustrate me. I need help!
Graph the equation.
y+2=-(x-4)
Thank you!
Click here to see answer by jim_thompson5910(35256)

Question 198198: Find the equation for each of the following items below:
a. A line that passes through (6,2) and has a slope of 2.
b. A line that passes though the points (2,4) and (8,16)
c. A line that passes through (7,3) and has a slope of -1.
d. A line that passes through (1, 1) and is perpendicular to the line 3x+4Y=12.
e. A circle with a radius of 9 and a midpoint at (3,3)

Click here to see answer by arallie(162)

Question 198384: Describe the transformations on the following graph of f(x)=log(x). State the placement of the vertical asymptote and x-intercept after the transformation. For example, vertical shift up 2 or reflected about the x-axis are descriptions.
a) g(x)=log(x-3)
b) g(x)=log(-x)
Click here to see answer by stanbon(75887)

Question 198421: In the accompanying diagram of the graph of the parabola y=ax�+bx+c, which must be one root of the equation ax�+bx+c=0?
1.1
2.-3
3.3
4.-4
Click here to see answer by Alan3354(69443)

Question 198422: Solve graphically and check:
2x+y=10
x-y=2
Click here to see answer by stanbon(75887)

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