Tutors Answer Your Questions about Graphs (FREE)
Question 134823: I know I have to set this to Y= in order to find the points for the x and y intercept, but honestly my brain just quit on me. I need to graph the following:
Graph 2x-5y=10.
I have 2x-2x-5y=10-2x
-5y = -2x+12
-5y/-5= -2x+12
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-5
My answer was y=2/5x+12
But I know that's not right. The correct answer is y=2x/5+2
that is y= 2x over 5+2
Please help! Ever have one of those days your brain refuses to do anything but be jello?? lol BTW-This is not from a textbook. It is a worksheet.
Click here to see answer by solver91311(24713)   |
Question 135096: P(x) is given both in standard form and factored form:
P(x)= -x^4+16x^3+22x^2-88x+51=-(x+3)^2(x-17)
a. use dominating term analysis and multiplicity of zeros to sketch by hand the graph P(x)
b. Use the graph obtained above to solve P(x)<0 Give your answer in interval notation.
Click here to see answer by solver91311(24713) |
Question 135193: The value of a new car decreases immediately after purchase. The equation v=-3000t+28,000 represents the value, v, of a certain car, in dollars, where t is years since it was purchased. Find the v- and t-intercepts, and interpret their meaning in the context of this problem.
Click here to see answer by Fombitz(32388)  |
Question 135021: Draw the graph of each line using its y-intercept and its slope.
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 model 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?
Click here to see answer by stanbon(75887) |
Question 135339: Thank you for taking the time to help. Here is the target graph equation and the first of a four part question;
Use the graph of y = x^2 -2x -8 to answer the following: a) Using the graph, what are the solution(s) to the equation x^2 - 2x -8 =0?
Click here to see answer by Nate(3500) |
Question 135345: Thank you for taking the time help with these questions.
The path of a falling object is given by the function where represents the initial velocity in ft/sec and represents the initial height in feet. Also, s represents the height in feet of the object at any time, t, which is measured in seconds.
If a rock is thrown upward with an initial velocity of 40 feet per second from the top of a 30-foot building, write the height (s) equation using this information, then determine the height after two (2) seconds, how many seconds to reach maximum height and what is maximum height?
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 135383: State the solution set of the inequality 2x + 3 >1 in interval notation.
2x + 3 > 1
2x + 3 - 3 > 1 -3
2x > -2
2x > -2/2 divide both sides by 2
2
x = -1 now I have to put that in interval notation
x > -1 (x, -1] Is my interval notation right?
Click here to see answer by stanbon(75887) |
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