Tutors Answer Your Questions about Graphs (FREE)
Question 46110: HOwdy Ya'll!
ok so here goes. use te point- slope form of the linear equation to find an equation of the line with the given slope and passing through the given point. And then I have to write it in "standard form"
Slope -4 ; through (-7, -5)
Thank Ya'll
Click here to see answer by Nate(3500)  |
Question 46447: Would someone explain in detail how to solve the following problem:
A bookstore manager plans to spend $60 on pens at 30 cents each and pencils at 10 cents each. The equation 0.10x + 0.30y = 60 can be used to represent the model in this situation.
a.) What do x and y represent?
b.) graph the equation
c.) write the equation in slope - intercept form.
d.) what is the slope of the line?
e.) what does the slope tell you?
What I have so far is:
0.10x + 0.30y = 60
0.30y = -0.10x + 60
I don't exactly know where to go from here because it hasn't been expalined very well in my class.
Thanks
Click here to see answer by checkley71(8403) |
Question 46590: please help.
Let .f(x)= x+2 if -3<=x<0
x^2 + 1 if 0 <=x<=2
a. Evaluate each of the following
f(-1) = ______ f(0) = ______ f(2) = ______
b. What is the domain of f(x)?
c. Sketch the graph of y = f(x) on the set of axes
Click here to see answer by Nate(3500) |
Question 46775: Please help me with this problem, I cant figure it out.
x -2 -1 0 1 2
y -.111 .333 1 3 9
Given the table above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph, and also the domain and range of the entire function.
Graph:
Graph Type:
Explanation:
Domain:
Click here to see answer by Nate(3500) |
Question 46857: identify the exponential function of the form f(x)=a(2^x)+b graph points provided
are (2,1) and (0,-2) and the lines runs horizontal to y=-3
a. f(x)=3(2^x)
b. f(x)=2^x-3
c. f(x)=2(2^x)-4
d. f(x)=2^x-2
the only one that makes sense to me is D
so that when x=0, y=-2 which is point given on the line.
Click here to see answer by Nate(3500) |
Question 46953: Hi! i have a question that asks to use a graphing calculator for the following equation.
"Find the roots of the equation"
y=.1x^3+2x^2-x-3
i dont know how to find the roots on the graphing calculator can someone tell me how please?? any advice will be helpful thanks!
Click here to see answer by stanbon(75887) |
Question 46960: i am having problems finding the point of intersection for graphs using a graphing calculator. can someone show me how to find the point of intersection for the graphs:
y=x^3+x-3 and y=2x+4
once again it says to solve using a graphing calculator. please help thanks!
Click here to see answer by Nate(3500) |
Question 47189: Is there a formula to discovering if a given table of values is linear or quadric? example: Parent input parent output
x f(x)
-3 9
-1 1
Also is there a formula to find the transformation that applies between the parent & the transformed?
Click here to see answer by atif.muhammad(135) |
Question 47564: Given that a line y=x passes through the origin and end up to the right, what would the line y=mx look like if m=1/2?
The 3 choices for answers are:
A. passes through the origin and up to right (answer I chose)
B. passes through the origin and up to the left
C. passes through (0,1/2) and up to the right
Thank you!
Click here to see answer by stanbon(75887) |
Question 47561: Looking at the Line L, the slope is ______ and the value of y when x=4 is____
The points on my sample graph for Line L are (-1,0) (0,2). Knowing this, I found the slope to be 2 but I don't get how to find the value of y when they give you what x is.
Click here to see answer by venugopalramana(3286) |
Question 47548: I am trying to graph
8x + 7y < -56 (that should be a greater than or equal to sign)
I came up with y= -8/7x - 8
Which means the rise is -8 and the then run is +7 and my y intercept is -8
Is this correct? I am graphing system of inequalities and my first equation was x^2 + y^2 < 64 (that also is a greater than or equal to sign)
That equation gave me a solid line with a radius of 8. Do these two equations intersect at the y axis of -8?
Click here to see answer by stanbon(75887) |
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