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

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Algebra: Graphs, graphing equations and inequalities

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Question 43737: If f(x) = -3x + 7, find f(a + 1)
Click here to see answer by aaaaaaaa(138)

Question 43790: Graph the line represented by x=-2
Click here to see answer by Nate(3495)

Question 43789: Graph the line represented by 2y=6
Click here to see answer by Nate(3495)

Question 43804: Find an equation for the line with the slope 1/2 and y-intercept 3. Thank you!
Click here to see answer by Nate(3495)

Question 43805: Find the slope of the line through the points A(-1,6) and B(5,2). Thank you!
Click here to see answer by Nate(3495)

Question 43803: the intersection of two lines is________(word/term)
Click here to see answer by Nate(3495)

Question 43808: how do you solve this problem
5x^2-7x-6>0
Click here to see answer by prabhjyot(164)

Question 43806: Find an equation for the line with y-intercept 3 that is perpendicular to the line y=(2/3)x-4. Thank you!
Click here to see answer by jake_6233(74)

Question 43802: Give the center of the circle with equation x^2+2x+y^2-10y+22=0. Thank you!
Click here to see answer by jake_6233(74)

Question 43880: Please help me with the following question: Determine the vertex of y=x^2-8x+22. Thank you!
Click here to see answer by stanbon(26275)

Question 43846: Find the slope of the line through the pair of points.

(-9, -6) and (-9, -8)
Click here to see answer by benni1013(141)

Question 43788: Graph the line represented by 2x-3y=-6
Click here to see answer by benni1013(141)

Question 43961: Solve hte indicated system of equations by graphing. Interpert your graph and indicate the solution.
3x - y = 9
2x + y = 11
For part of it I have: 5x = 20 x = 4
Click here to see answer by fractalier(1804)

Question 43845: i need help please
the book says graph
y-1=-1/2(x-3)
thank you mike
Click here to see answer by adamchapman(301)

Question 43912: let F(x)=(x^2)-2x+3. find the axis of symmetry, vertex, and the x and y intercepts if they exist. sketch the graph of f.
Click here to see answer by Nate(3495)

Question 44088: Graph -1/2x + y > -2
Click here to see answer by adamchapman(301)

Question 44203: Decide whether the pair of lines is parallel, perpendicular, or neither.

The line through (-20, 5) and (-4, 7) and the line through (-5, 5) and (7, 4)

Click here to see answer by adamchapman(301)

Question 44201: Find the slope of the line through the pair of points.

(-9, -6) and (-9, -8)

Click here to see answer by adamchapman(301)

Question 44224: i'm trying to determine the correct half -place for this and to complete the graph.

Click here to see answer by stanbon(26275)

Question 44225: also got this wrong i'm trying to determine the correct half -place for this and to complete the graph.

Click here to see answer by stanbon(26275)

Question 44205: Tell whether the points are the vertices of a parallelogram (that is not a rectangle), a rectangle, or neither.

(-7, -1), (2, -10), (16, -3), (7, 8)

Click here to see answer by Nate(3495)

Question 44200: Find the slope and the y-intercept of the line.

6x - 9y = -18

Click here to see answer by fractalier(1804)

Question 44309This question is from textbook

: If f(x)=x(x-1)(x-4)^2, use interval notation to give all values of x where f(x)>0.
Thanks!This question is from textbook

Click here to see answer by venugopalramana(3286)

Question 44220: use substitution to find the solution of each system
y=2x
y=-x+12
also
y=x-2
y=-x+6
Click here to see answer by fractalier(1804)

Question 44308This question is from textbook

: The figure shows the graphs of f(x)=x^3 and g(x)=ax^3. What can you conclude about the value of a?
Thank you!This question is from textbook

Click here to see answer by Nate(3495)

Question 44388: 2x-3y=6
Click here to see answer by adamchapman(301)

Question 44409: Graph each square root function and state its domain and range.

y= 2√x + 1

the square root arm only covers the x
Click here to see answer by stanbon(26275)

Question 42982: 1. Determine the vertex of y=x^2-8x+22.
2. If P(4,-5) is a point on the graph of the function y=f(x), find the corresponding point on the graph of y=2f(x-6).
3. An object is projected upward from the top of a tower. Its distance in feet above the ground after t seconds is given by s(t)=-16t^2+64t+80. How many seconds will it take to reach ground level?
4. Given f(x)=5x+7 and g(x) =x^2+7, find (g f)(x)
Click here to see answer by stanbon(26275)

Question 44407: Graph each quadratic function and state its domain and range.

h(x) = -3x²

Click here to see answer by adamchapman(301)

Question 44405: Can I get some help here?

Graph each function and state its domain and range.
g(x)= x+2

Thanks
Click here to see answer by fractalier(1804)

Question 44450: Find the y-intercept.
–x + 3y = 15
A) (5, 0) B) (0, –15) C) (0, 5) D) (–15, 0)

Click here to see answer by stanbon(26275)

Question 44487: I am working a lesson involving inequalities and am a little stuck. I must graph the problems and describe them.
-6 < x + 3 < 6
Thanks
Click here to see answer by Nate(3495)

Question 44512: Y=Square root of (x).
Click here to see answer by jake_6233(74)

Question 44524This question is from textbook Elementary and Intermediate Alegebra
: Write an equation, in the slope-intercept form, if possible, for each of the following lines:
(a) The line through (0,2) that is parallel to the line
(b) The line through (0,-3) and (4,0)
This question is from textbook Elementary and Intermediate Alegebra

Click here to see answer by jake_6233(74)

Question 44525This question is from textbook Elementary and Intermediate Alegebra
: Answer TRUE or FALSE.
(a) The equation of the line through (0,0) which is perpendicular to y = x is y = -x
(b) The line 2x – y = -1 goes through the point (-2,-3)

This question is from textbook Elementary and Intermediate Alegebra

Click here to see answer by venugopalramana(3286)

Question 44511: Y=Square root of (x.
Click here to see answer by tutorcecilia(2042)

Question 44548: solve graphically
y=-x-1
4x-3y=24
Click here to see answer by Nate(3495)

Question 44547: solve graphically
a+1=b
b=5-2a
Click here to see answer by Nate(3495)

Question 44444:
thank u
Click here to see answer by Nate(3495)

Question 44554:
10. Find the slope and y-intercept.
x = –8
A) Slope: undefined; y-intercept: (0, –8) C) Slope: undefined; y-intercept: none
B) Slope: 0; y-intercept: none D) Slope: 0; y-intercept: (0, –8)

Click here to see answer by stanbon(26275)

Question 44564:
Click here to see answer by checkley71(8405)

Question 44560: Graph the following inequality.
y-x>-3

Click here to see answer by Nate(3495)

Question 44558: graph the following inequality?
y-x>-3

Click here to see answer by Nate(3495)

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