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 73814: L HAS Y-INTERCEPT (0,3)AND IS PARALLEL TO THE LINE WITH EQUATIONY=2/3X +1
Click here to see answer by BigRed(1)

Question 73821: How do I graph ?
Click here to see answer by checkley75(3666)

Question 73866: I sent this one before but I forgot the plus 1. I am such a moron. Please help.
Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, -3) and is parallel to the line with equation y=2/3x+1.

Click here to see answer by jim_thompson5910(13787)

Question 73836This question is from textbook

: What is the real world meaning to A in the equation Y=A+bx the equation is Y=0.1469x+49.243 this is about roller coasters.Thank youThis question is from textbook

Click here to see answer by bucky(1732)

Question 73538: what is the slope intercept form of 5x+3y
Click here to see answer by tazoftroy(22)

Question 73996: the sum of the ages of the father has a slope of 3 and passes through the point (3,1). find the solution.
Click here to see answer by checkley75(3666)

Question 74078: Number problems. You have at least $30 in change in your drawer, consisting of
dimes and quarters. Write an inequality that shows the different number of coins
in your drawer.

Click here to see answer by stanbon(26268)

Question 74081: Please help. What am I doing here?
In exercise 18, rewrite each equation as a function of x.
-3x+4y=11

Click here to see answer by stanbon(26268)

Question 74082: Please help. What am I doing here?
In exercise 30, if f(x)= 4x-3, find the following:
f(-1)

Click here to see answer by stanbon(26268)

Question 74083: Here is another one I can not figure out. Please help.
In exercise 36, if f(x)=5x-1, find the following:
f(a-2)

Click here to see answer by ankor@dixie-net.com(6693)

Question 74080: Please help. What am I doing here?
In exercise 2, evaluate each function for the value specified.
f(x)=x^2-7x +10; find (a) f(0), (b) f(5), and (c) f(-2).

Click here to see answer by jim_thompson5910(13787)

Question 74105: How would you plot (-6,-5)and(1,3)?
Thank You
Click here to see answer by jim_thompson5910(13787)

Question 74107This question is from textbook Algebra 2
: The shape of a supporting arch can be modeled by h(x)=-0.03x^2+3x, where h(x) represents the height of the arch and x represents the horizontal distance from one end of the base of the arch in meters. Find the maximum height of the arch.
Any help is greatly appreciated!This question is from textbook Algebra 2

Click here to see answer by stanbon(26268)

Question 74133This question is from textbook algebra 2
: find the value of k so that the equation below has the solution set {-3}.
3(2x-1)=x(2-k)This question is from textbook algebra 2

Click here to see answer by stanbon(26268)

Question 74140: Use the Pythagorean theorem to determine the length of each line segment. Where appropriate, round to the nearest hundredth.
The plotted points are at (1, -1) and (3, 2).

I am not understanding this problem and need some help with this. Thanks
Click here to see answer by checkley75(3666)

Question 74145: help me with finding the answers to this chapter in my texst book thanks.
Click here to see answer by jim_thompson5910(13787)

Question 73680This question is from textbook college algebra
: I need to know if I have done these right!! Thank you so much!!
) Given a line containing the points (1,3), (2,4), (3,5) determine the slope-intercept form of the equation, give one additional point on this line and graph the function.

Show your work here: y2-y1/x2-x1= -4,-6

Give one additional point in (x,y) form that would fall on this line: 4,6

This question is from textbook college algebra

Click here to see answer by jim_thompson5910(13787)

Question 74207: Graph the following inequality.
3x-4y<12

Click here to see answer by jim_thompson5910(13787)

Question 74204: graph the function.
f(x) = -2x -5

Click here to see answer by jim_thompson5910(13787)

Question 74204: graph the function.
f(x) = -2x -5

Click here to see answer by bucky(1732)

Question 74215: Write in STANDARD FORM an equation of the line that passes through: (-3,3) and (7,2)
Click here to see answer by jim_thompson5910(13787)

Question 74218: I don't understand how to graph equations. Say for example the problem is
4x-3y=12 and you have to solve the equation and graph. Could you help me out
Click here to see answer by checkley75(3666)

Question 74202: Business and Finance. If the inventor in exercise 53 charges $4 per unit, then her profit for producing and selling x units is given by the function
P(x) = 2.25x-7000
(b) What is her profit if she sells 5000 units?
This is exercise 53 below:
Business and Finance. If the inventor of a new product believes that the cost of producing the product is given by the function
C(x)= 1.75 + 7000
How much does it cost to produce 2000 units of her invention?
$10,500

Click here to see answer by Poohbear272(22)

Question 74158: 5 (2x - 1 ) < -8
Click here to see answer by checkley75(3666)

Question 74299: Hi,
What are the coordinates of the y-intercept of the graph of y=2/3x-6?
I know that the y=-6, and x=0 but why does it equal zero. Also if the equation looked like y= -6x+2/3? would the answer be (0,-2/3)?
thanks in advance
Click here to see answer by jim_thompson5910(13787)

Question 74472: 2y-6x-14=-4
Click here to see answer by rmromero(383)

Question 74473: 2y-6x-14=-4
Click here to see answer by rmromero(383)

Question 74532: Please help.
Graph using the intercept method: x + 3y = 6.
Click here to see answer by funmath(2873)

Question 74530: Please help.
Find the slope and the y-intercept.
y = –8x – 4

Click here to see answer by funmath(2873)

Question 74528: Please help. Graph 3x + 2y = 6.
Click here to see answer by checkley75(3666)

Question 74527: Please help. I am not good with fractions and adding this other stuff makes it even harder.
Complete the ordered pairs for the equation y = 2x + 4.

( ,0), (1/2, ), (0, ), (-1/2, )
Click here to see answer by checkley75(3666)

Question 74536: Find the slope of the line passing through the points (8, –9) and (4, 2).
A) 4/11
B) -4/11
C) 11/4
D) -11/4

Click here to see answer by checkley75(3666)

Question 74480: solve y=1/3x + 2 ? how would you graph this?
Click here to see answer by checkley75(3666)

Question 74585: Please help me understand this
If points A,B, and C lie on a coordinate line and points A and B have coordinates 15 and 7 respectively, then which of the possible coodinates for point C satisfy(ies) d(A,C) < d(B,C)
Thanks to anyone who takes the time to teach me this
Click here to see answer by stanbon(26268)

Question 74512: I am having a hard time with this question, Please help me understand how to get the answer, I am not even sure where to start with this one.
Suppose that you are a hospital dietician. A patient must have at least 165 milligrams and no more than 330 milligrams of cholesterol per day from a diet of eggs and meat. Each egg provides 165 milligrams of cholesterol and each ounce of meat provides 110 milligrams of cholesterol.

Graph the system of inequalities in the first quadrant (explain why). Identify at least two ordered pairs that are part of the solution set. Describe what each ordered pair means in terms of the variables for this problem.
Click here to see answer by josmiceli(3007)

Question 74643This question is from textbook
: x+y=6
x-y=2
I'm trying to figure out how to solve this for graphing. I know the graphing part, Just not sure on how to solve the problem. Thanks!This question is from textbook

Click here to see answer by stanbon(26268)

Question 74641: Graph the following:
y = x + 2
Click here to see answer by checkley75(3666)

Question 74638: Graph the following:
y = –x – 2
Click here to see answer by checkley75(3666)

Question 74634: Determine which two equations represent perpendicular lines.
A) y = 8x-1
B) y = 1/8x+1
C) y = -1/8x+1
D) y = 1/8x-1

Click here to see answer by checkley75(3666)

Question 74633: This is my problem if I make one mistake all my choices are so similar. Please help.
Rewrite the equation 4x – 10y = 11 as a function of x.
A)y = -2/5x +11
B)y = 2/5x -11
C)y = 2/5x -11/10
D)y = -2/5x + 11/10

Click here to see answer by checkley75(3666)

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