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

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Question 1037916: Determine the number of solutions for each equation:
3x+1≥7
Click here to see answer by josgarithmetic(39617)

Question 1037247: Sketch a graph of a function f that satisfies the following conditions:
f does NOT have an inverse function
f(x) > x for all x
f(1) > 0
Click here to see answer by robertb(5830)

Question 1037938: T=gr + gvt for g I divided off r+vt from both sides to place the g alone on right side but then I got stuck
Click here to see answer by Aldorozos(172)

Question 1037991: The question I have is "Describe how the graph of f(x)=-1/4(x-5)^2 is related to the graph of f(x)=x^2."
I don't need the answer, I have that!
I have a math final tomorrow and this just a study guide question.
I need to know HOW my teacher got "curves down,wider,shifts 5 units right." Thank you!
Click here to see answer by josgarithmetic(39617)

Question 1038062: Graph the function g(x)=log(7x+21)-4
How would I graph this, I understand that -4 is shifting it downwards by 4. Does that mean 21 would shift it to the left by 21? And what would I plug the x-cord to get the y-cord. I remember doing these back in the day, but I completely forgot how to solve these. Thank you to whoever helps!
Click here to see answer by Alan3354(69443)

Question 1038142: y=3x+6 and y=3x-1 identified following pairs of line as either parallel,perpendicular or neither?

Click here to see answer by garettbuff(18)

Question 1038289: Please help me graph y= | x + 3 |
I don't understand
Thank you
Click here to see answer by t0hierry(194)

Question 1038291: Please show me how to graph y = | x + 3 |
Click here to see answer by Alan3354(69443)

Question 1038294: Please help me graph y = | x - 3 |
Click here to see answer by jim_thompson5910(35256)

Question 1038318: The coordinates of the vertices of a scalene triangle (ABC) are A (0,0), B (3,3) and C (6, -6). The equation of a median from Vertex B is?
Is it x=3? But I'm quite confused when I'm getting the slope on the way to having an equation. If the slope is undefined, that means the answer is x=k, but what value will I use? The x-coordinate of the midpoint or x-coordinate of B? Thank you so much!
Click here to see answer by josgarithmetic(39617)

Question 1038365: A function f is given.
f(x)=x-2,
-2 < x < 3
i) Sketch the graph of x
ii)Use the graph to find the domain and range.
Click here to see answer by stanbon(75887)

Question 1038463: B={1,4,7} F= {−2, 0, 4, 5, 6,8}
Find the intersection of B and F .
Find the union of B and F . Write your answers using set notation.
Click here to see answer by solver91311(24713)

Question 1038674: The graphical representation of function f (x)=1/x
Click here to see answer by Fombitz(32388)

Question 1038725: Write the equation of a line that goes through the points (3, -4) and (3, -2)
Click here to see answer by Alan3354(69443)

Question 1038791: The sum of two numbers is 18. The sum of their squares is at most 170. Find all integral pairs of the numbers that satisfy these conditions.
Click here to see answer by Fombitz(32388)

Question 1038793: The length of a rectangle is 4 inches longer than its width. What are the possible widths in integral values of the rectangle is less than 437 inches squared?
Click here to see answer by jorel555(1290)

Question 1038855: When the slope of a line is indefinite? What is the direction of line with an
indefinite slope?
Click here to see answer by ikleyn(52778)

Question 1038862: Joe is fascinated by complex numbers and the fact that even if a quadratic equation has no real solution, it will always have a complex solution. joe has discovered a quadratic equation with unreal solutions. List the non real solutions of the equation below:
2x^2-4x+4
Click here to see answer by Alan3354(69443)

Question 1038860: I need to find the coordinates of vertices x+2y<=250, 2x-y>=0,2x-y<=100 and I am totally lost. Thank you. Cami
Click here to see answer by Alan3354(69443)

Question 1038860: I need to find the coordinates of vertices x+2y<=250, 2x-y>=0,2x-y<=100 and I am totally lost. Thank you. Cami
Click here to see answer by addingup(3677)

Question 1038933: I need help with a graphing question:
I can't paste the graph, but the x intercepts are approximately -1 and 3. The Y intercept is -2.
I'm asked to find the equation that represents the graph and I'm given the following equations:
A. y = x^2 � 2x � 2
B. y = �x^2 + 2x � 2
C. y = 2x^2 � 3x � 2
D. y = �2x^2 + x � 2
I'm also asked to state the range, the vertex and state the interval on which the function is decreasing.
I really appreciate any help you can offer, thank you!

Click here to see answer by solver91311(24713)

Question 1039081: I could really use some help on this equation:
Consider the equation 5x^2 + 5 = 8x. Find the complex solutions (real and non-real) of the equation, and simplify as much as possible. Show work please.
I really appreciate your help!
Click here to see answer by Alan3354(69443)

Question 1039025: A) find a walk of length 7 in the graph is it a path?
B) write a degree sequence of the graph.
C) draw the compliment of the graph. Is the compliment connected?
Click here to see answer by Alan3354(69443)

Question 1039053: I really need help w/ this problem. Anything is appreciated!
Let P(x)= -.25x^4 + .875x^3 + x^2 -1.625x -1.5

When factored, P(x)= -.25(x+1)^2 (x-3/2)(x-4)
(a) State the domain.
(b) Which sketch illustrates the end behavior of the polynomial function?

(c) State the y-intercept:

(d) State the real zeros:
(e) Illustrate the graph of P(x).
I really appreciate any help you can offer!

Click here to see answer by solver91311(24713)

Question 1039310: Standard function for y=2x^2+8x-3.
Click here to see answer by josgarithmetic(39617)

Question 1039397: Graph y-2 = 1/2(x-1)

Click here to see answer by josgarithmetic(39617)

Question 1039433: y=3x+1 i need to plot this on a graph and then make a straight line my graph is y 10 to 0 then to -3 and X is -5 to 0 then 0 to 6
Click here to see answer by Edwin McCravy(20054)

Question 1039444: -3x+2y=2

Click here to see answer by Alan3354(69443)

Question 1039444: -3x+2y=2

Click here to see answer by FrankM(1040)

Question 1039462: 2y - 8x =10 i need to plot this on a graph and then make a straight line my graph is y 10 to 0 then to -3 and X is -5 to 0 then 0 to 6 ''.

Click here to see answer by Alan3354(69443)

Question 1039536: I need to decide if the statements Are:
Always True
Always False
Sometimes True
A: If two lines have different gradients they must intersect.
B: If a line intersects the Y-Axis at (0,3) it intersects the positive X-Axis.
c: If a line has a gradient of 1 it makes an angle of 45 degrees with the X-Axis
D: If a line cuts the positive X-Axis and the positive Y-Axis it has a negative gradient.
E: The line X=4 has a gradient of 0.
I would really appreciate the help Thanks!
Click here to see answer by Alan3354(69443)

Question 1039567: if a line cuts the positive x-axis and the positive y-axis it has a negative gradient
true or false or sometimes true
i have no idea this is the last one on my homework sheet, all help is appreciated!
Click here to see answer by jim_thompson5910(35256)

Question 1039566: If two lines have different gradients they must intersect?
I dont know if this is true or false or if its sometimes true
help would be appreciated
Click here to see answer by jim_thompson5910(35256)

Question 1039565: If a line has a gradient of 1 it makes an angle of 45 degrees with the x-axis
is that true or false or sometimes true?

Click here to see answer by Alan3354(69443)

Question 1039624:
Click here to see answer by Alan3354(69443)

Question 1039647: If a line intersects the Y-axis at (0,-3) it intersects the positive X-Axis
Is this Always True, Always False or Sometimes True
Click here to see answer by josmiceli(19441)

Question 1039648: The Line x=4 has a gradient of zero.
Is this Always True, Always False or Sometimes True
Click here to see answer by josgarithmetic(39617)

Question 1039754: A boat covers a certain distance downstream in 2 hours.it covers the same distance upstream in 2.5 hours.
The speed of the boat i 18 km/hr.
Find the speed of the water. Also find the distance covered by the boat
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Click here to see answer by josmiceli(19441)

Question 1039791: find the coordinates of the vertices of the figure formed by each system of inequalities.
y+x_>-9
y_>x-7
2y+x_<16
Click here to see answer by Fombitz(32388)

Question 1039792: plot the feasible region graphically for:
x_>2.8
y_<4.8
2.8x+4.8y_<9
f(x,y)=x-y
Click here to see answer by Fombitz(32388)

Question 1039907: Graph y=2x 3x-y=-2
Click here to see answer by addingup(3677)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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