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Tutors Answer Your Questions about Graphs (FREE)
Question 6505: Dear Sir/Madam,
I am confronted with the following problem:
"Where does the graph of y = 2 + 2^x cross the y-axis?"
Is there a way of solving this without graphing the function?
Thanks in advance.
Regards,
-Mike
Click here to see answer by ichudov(404)   |
Question 6512: May someone help me understand this problem. I have looked in my testbook and I can not find an example that can help me solve this problem.
The question is:
Solve the following sysstem of equations by graphing:
y = x^2 - 4 and y = x - 2.
Thanks,
Angie
Click here to see answer by ichudov(404) |
Question 6672: can you help me solve this equation?
I am trying to solve a system of linear quations by the substitution method.
6x - 4y = 3
3x - 2y = 9
I need to see how you worked the solution so that I can make sure that I am doing it right and can do the rest of the problems on my own.
Thank you!!!
Click here to see answer by xcentaur(357)  |
Question 6882: I would like it if someone could show me step by step with an explaination on how to solve this type of problem. I keep getting the wrong answer. "Find the slope of a straight line that passes through the given pair of points". (3/4,-4) and (2,-8)... What I have been doing is this
y2, y1 = -8--4 = -4
_______ _____ __
x2, x1 = 2-3/4 = 2 1/4 = 9/4
The book says the answer is -16/5
What am I doing wrong?
Click here to see answer by glabow(165) |
Question 7056: Write the equation that represents the line that passes through the points
(0,-4) and (3,2)?
then the second part of the question is:
Create an equation for each situation an equation that would generate
A)positive slope
B)negative slope
C)a slope of zero
D)undefined slope
thank you for taking your time to help me, because this is required for the first day of my Algebra II class.
Click here to see answer by longjonsilver(2297)  |
Question 7176: Hello, My name is Johnny. Can someone help me with graphs?
I really, really don't understand how to do them. I need help. I brought some examples of the type of stuff where doing, but I don't know where to begin, my teacher goes so fast you can't really understand what he is saying.
1. y = 2x
2. y = -2x + 1
3. y = 3x - 2
4. y = xsquared - 4
Please, I really need your help.
Johnny
Click here to see answer by Earlsdon(4900) |
Question 7175: Hello, Tutors!
My name is D'Angelo. I was wondering can someone help me understand graphs/equations?
In my math class we are on this section in the book where its talking about graphs, and how to do equations. But, I don't understand because my teacher talks to fast, and you can bearly understand what she is saying so someone please help me.
I brought an example of what where doing, but I don't know how to do them.
y=-2x + 6
y=x - 4
Thank You
D'Angelo
Thank You
Click here to see answer by sabanasir(22) |
Question 7198: hi how are you doing today? well im stuck on this one promblem. the directions say, "Find the slope of each equation." and the equation is 2x+3y+32=0. now what i tried to do was get the y and x intercepts and some how put them in this form>>>(x,y) (x2,y2) so that i can use the slope formula m=y2-y1/(that means over)x2-x1. thank you so much for your help and i hope i didnt confuse you in anything and if i did then let me know and i'll try to clarify it. thanks again
Click here to see answer by prince_abubu(198) |
Question 7212: ok here is a question that is troubling me. the directions say "determine the value of "r" so that a line through the points with the given coordinates has the given slope. draw a sketch of each situation" now about this sketch thing i dont think i need help on that you dont got to worry about that. but here is the problem. (5,r), (2,3); slope=2. thank you for taking the time to help me.
Click here to see answer by longjonsilver(2297) |
Question 7296: here is another question i have. the directions say, "write an equation in slope-intercept form that satisfies each condition." and here is a problem. "slope=-0.5, passes through (2,-3)". i know that the answer will have something like this= y=-0.5x because the slope is given so thats next to the "x". but whats with the rest? thank you so much whoever gets to answer.
Click here to see answer by longjonsilver(2297) |
Question 7820: I need to Simplify and express in simplest radical form.
How would I simplify
(square root of 3 - square root of 5)(square root of 3 - square root of 5)
Would I multiply to get
square root of 9 * square root of 25
which would be
3 * 5
Answer 15
Click here to see answer by prince_abubu(198) |
Question 7926: Solve each system by the substitution method. Determine whether the equations are independent, dependent, or inconsistent.
29.) 2x + y = 9
2x – 5y = 15
The books answer is this what I don't understand is how the book came out with this answer. Can you help me solve this please?
{(5, -1)}, independent
Thank you-
Click here to see answer by longjonsilver(2297) |
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