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

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Question 1203422: Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the given equation. (4, -5), 2x-5y= -10
Click here to see answer by ikleyn(52780) About Me 
Question 1203422: Write an equation in slope-intercept form for the line that passes through the given point and is perpendicular to the graph of the given equation. (4, -5), 2x-5y= -10
Click here to see answer by math_tutor2020(3816) About Me 

Question 1203474: Bridge shaped like a parabolic arch has a horizontal distance of 20 feet. The height of a point 1 foot from the center is 8 feet. What is the maximum height of the bridge if it is located at the center?
Click here to see answer by Edwin McCravy(20054) About Me 
Question 1203474: Bridge shaped like a parabolic arch has a horizontal distance of 20 feet. The height of a point 1 foot from the center is 8 feet. What is the maximum height of the bridge if it is located at the center?
Click here to see answer by ikleyn(52780) About Me 
Question 1203474: Bridge shaped like a parabolic arch has a horizontal distance of 20 feet. The height of a point 1 foot from the center is 8 feet. What is the maximum height of the bridge if it is located at the center?
Click here to see answer by greenestamps(13200) About Me 

Question 1203502: What is the range of the function given by the following graph, and how did you figure it out?
Image link: https://gyazo.com/c0433ba101c61a63a0ec9b38445b162d

Click here to see answer by Edwin McCravy(20054) About Me 
Question 1203502: What is the range of the function given by the following graph, and how did you figure it out?
Image link: https://gyazo.com/c0433ba101c61a63a0ec9b38445b162d

Click here to see answer by mccravyedwin(407) About Me 

Question 1203503: Given f(x) = 2^x, explain how to find the range of g(x) = 5 (2+6f(23-x)) without graphing.
State the range of g(x).

Click here to see answer by ikleyn(52780) About Me 

Question 1203554: Graph the equation y = - 3x^2

Can you please explain to me this homework question by showing the steps? Thank you very much!

Click here to see answer by math_tutor2020(3816) About Me 

Question 1203826: What's bigger -4 or -3
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Question 1203826: What's bigger -4 or -3
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Question 1203914: The tennis coach at Summerfield High School is purchasing equipment for the team. He has a budget of no more than $400 to purchase rackets and tennis balls. A large case of tennis balls costs $20, and a racket costs $40.
Select the inequality in standard form that describes this situation. Use the given numbers and the following variables.
x = the number of cases of tennis balls
y = the number of rackets

Click here to see answer by math_tutor2020(3816) About Me 

Question 1203923: A rock band has made souvenir T-shirts to sell at their concert and hopes to bring in at least $112 from the sale of the shirts. They make $14 for each adult T-shirt and $8 for every child T-shirt.
Select the inequality in standard form that describes this situation. Use the given numbers and the following variables.
x = the number of adult T-shirts
y = the number of child T-shirts

Click here to see answer by mananth(16946) About Me 
Question 1203923: A rock band has made souvenir T-shirts to sell at their concert and hopes to bring in at least $112 from the sale of the shirts. They make $14 for each adult T-shirt and $8 for every child T-shirt.
Select the inequality in standard form that describes this situation. Use the given numbers and the following variables.
x = the number of adult T-shirts
y = the number of child T-shirts

Click here to see answer by MathLover1(20849) About Me 

Question 1203946: Angel is selling popcorn for a choir fundraiser. He has already sold $25 worth of popcorn. If he sells over $100 dollars then he will earn a prize. Each bag is $5.00. How many more bags does Nick need to sell in order to win a prize?
Write an inequality to answer this question. Use "b" for the variable.
Solve the inequality below

Click here to see answer by MathLover1(20849) About Me 
Question 1203946: Angel is selling popcorn for a choir fundraiser. He has already sold $25 worth of popcorn. If he sells over $100 dollars then he will earn a prize. Each bag is $5.00. How many more bags does Nick need to sell in order to win a prize?
Write an inequality to answer this question. Use "b" for the variable.
Solve the inequality below

Click here to see answer by greenestamps(13200) About Me 
Question 1203946: Angel is selling popcorn for a choir fundraiser. He has already sold $25 worth of popcorn. If he sells over $100 dollars then he will earn a prize. Each bag is $5.00. How many more bags does Nick need to sell in order to win a prize?
Write an inequality to answer this question. Use "b" for the variable.
Solve the inequality below

Click here to see answer by MathTherapy(10552) About Me 

Question 1203948: Wang Hao wants to spend at most $15 on dairy products. Each liter of goat milk costs $ 2.40, and each liter of cow's milk costs $ 1.20. Write an inequality that represents the number of liters of goat milk (G) and cow's milk (C) Wang Hao can buy on his budget.
Click here to see answer by ikleyn(52780) About Me 

Question 1204049: The following data represents the number of repairs conducted in a month by 28 technicians working for a company that services mining equipment:

21 50 55 43 31 36 37 44 55 39 70 72
49 65 51 85 60 57 82 78 29 32 79 56
43 89 45 68

1.1 From the raw data determine the mean (average) number of repairs.
1.2 From the raw data determine the modal number of repairs.
1.3 From the raw data determine the median number of repairs.
1.4 From the raw data determine the range.
1.5 Calculate K, the number of classes required to generate a frequency table.
1.6 Calculate the class width required to generate a frequency table.
1.7 Group the data into a frequency table using 1.5 and 1.6 above as your
guidelines.
1.8 Draw an O GIVE corresponding to the table above.

Click here to see answer by mananth(16946) About Me 

Question 1204141: For a given week, Latoya's Coffee House has available 900 ounces of A grade coffee and 1000 ounces of B grade coffee. These are blended into packages as follows: a deluxe blend that contains 4 ounces of A grade coffee and 8 ounces of B grade coffee, and a special blend that contains 9 ounces of A grade coffee and 5 ounces of B grade coffee. Let x be the number of deluxe blend packages sold. Let y be the number of special bland packages sold. Shade the region corresponding to all values of x and y that satisfy these requirements.
Click here to see answer by math_tutor2020(3816) About Me 

Question 1204188: x<2
Click here to see answer by ikleyn(52780) About Me 

Question 1204401: Here is a bivariate data set. Find the regression equation for the response variable y.
x y
71 31.4
63.7 20.2
73.6 22.4
69.5 12.5
79.3 5.3
88.2 -4.8
78.8 10.3
67.5 25.4
64.4 16.6
65.2 23.7
52.5 40.5
49.9 39.2

regression equation:

Enter the equation in slope-intercept form with parameters accurate to three decimal places.

Click here to see answer by josgarithmetic(39617) About Me 

Question 1204402: Use linear regression to find the equation for the line that best fits this data. Round both numbers to two decimal places. Write your final answer in a form of an equation
y=mx+b

x 1 2 3 4 5 6
y 74 85 104 114 138 152

Click here to see answer by MathLover1(20849) About Me 

Question 1204400: Based on the data shown below, calculate the regression line (each value to two decimal places)
y =
x +

x y
4 11.5
5 12.85
6 15
7 14.95
8 15.7
9 17.15
10 17.1
11 19.85
12 20.3
13 21.45
14 21.1
15 22.45
16 26.7
17 25.35
18 28.8

Click here to see answer by ikleyn(52780) About Me 
Question 1204400: Based on the data shown below, calculate the regression line (each value to two decimal places)
y =
x +

x y
4 11.5
5 12.85
6 15
7 14.95
8 15.7
9 17.15
10 17.1
11 19.85
12 20.3
13 21.45
14 21.1
15 22.45
16 26.7
17 25.35
18 28.8

Click here to see answer by MathLover1(20849) About Me 

Question 1204460: https://us-static.z-dn.net/files/ddc/734d32b8563bec79932ae93923fb5031.png
Question Right Here ^^^

Click here to see answer by MathLover1(20849) About Me 
Question 1204460: https://us-static.z-dn.net/files/ddc/734d32b8563bec79932ae93923fb5031.png
Question Right Here ^^^

Click here to see answer by Edwin McCravy(20054) About Me 
Question 1204460: https://us-static.z-dn.net/files/ddc/734d32b8563bec79932ae93923fb5031.png
Question Right Here ^^^

Click here to see answer by math_tutor2020(3816) About Me 

Question 1204525: (-4 -7)(2 8)
Click here to see answer by mananth(16946) About Me 

Question 1204622: Graph the following: y=3/2x - 2
Click here to see answer by MathLover1(20849) About Me 
Question 1204622: Graph the following: y=3/2x - 2
Click here to see answer by math_tutor2020(3816) About Me 

Question 1204661: If the function is
k(x)=4x+11
find
k(10)

Click here to see answer by mananth(16946) About Me 

Question 1204886: A line passes contains (7,1) (p,0) and (0,p) P does not equal to 0
Please write in standard form

Click here to see answer by josgarithmetic(39617) About Me 
Question 1204886: A line passes contains (7,1) (p,0) and (0,p) P does not equal to 0
Please write in standard form

Click here to see answer by greenestamps(13200) About Me 

Question 1204897: the daily cost to rent a truck is $19.95, with an added cost of $.50 per mile. How much would it cost to rent a truck for one day and drive it for 73 miles?

Click here to see answer by math_tutor2020(3816) About Me 
Question 1204897: the daily cost to rent a truck is $19.95, with an added cost of $.50 per mile. How much would it cost to rent a truck for one day and drive it for 73 miles?

Click here to see answer by mananth(16946) About Me 

Question 1204964: How do i graph y=2x-1
Click here to see answer by math_tutor2020(3816) About Me 

Question 1204975: suppose the function y=f(x) is decreasing on the interval (-2,7). Over what interval is the graph of y=f(x+2) decreasing?
Click here to see answer by math_tutor2020(3816) About Me 

Question 1204976: y=f(x) is decreasing on the interval (-2,7). what interval is the graph of y=f(x+2) decreasing?
Click here to see answer by MathLover1(20849) About Me 
Question 1204976: y=f(x) is decreasing on the interval (-2,7). what interval is the graph of y=f(x+2) decreasing?
Click here to see answer by ikleyn(52780) About Me 

Question 1205073: A concession stand sells pizza slices and lemonade.
Each pizza slice costs $2.50
.
Each lemonade costs $1.00.
The total sales for one day is $100
.
Which graph represents the relationship between the number of pizza slice sales, x,
and the number of lemonade sales, y,
for that day?

Click here to see answer by ikleyn(52780) About Me 

Question 1205189: graph y=x+5
Click here to see answer by MathLover1(20849) About Me 
Question 1205189: graph y=x+5
Click here to see answer by josgarithmetic(39617) About Me 
Question 1205189: graph y=x+5
Click here to see answer by math_tutor2020(3816) About Me 

Question 1205204: graph y=-2/3x+5

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