Here are some problems I am doing to study for the book
They cover all the concepts that we went over in class
I hope that they are helpful for you!
They are problems from the book but they are the most important ones for me to consentrate on and study.
The answers can be found in the back of the book.
You can reply on the blog as a comment to answer the questions
that way we are colabarating and helping each other to study and learn! :)
Amelia
Complete the given ordered pairs for the equation, and then graph the equation.
ReplyDelete27. x+2y=5
(0, ) ( ,0) (2, ) ( ,2)
I thought we could make this like the google doc where we post some questions and then answer other peoples questions to help eachother study.
ReplyDeleteComplete the given ordered pairs for the equation, and then graph the equation.
ReplyDelete29. 4x-5y=20
(0, )( ,0)(2, )( ,-3)
Find the x and y intercepts. Then graph each equation.
ReplyDelete35. 3x-7y=9
Find the x and y intercepts. Then graph each equation.
ReplyDelete39. x=5
Find the x an y intercepts then graph each equation.
ReplyDelete41. x+5y=0
Find the x and y intercepts then graph the equation.
ReplyDelete43. 2x=3y
I will start posting some replies to the problems to start it off.
ReplyDelete27. x+2y=5
(0, ) ( ,0) (2, ) ( ,2)
x+0=5
x=5
0+2y=5
y=5/2
I got to this step but am having problems solving the rest of it.
I found (0, 5) (5/2 ,0)
But I forgot how to find the rest of the points can someone please help?
35.3x-7y=9
ReplyDelete3x-0=9
x=3
0-7y=9
y=9/-7
3x-7y=9
-7y=-3x+9
y=3/7x-9/7
The x int=3 the y int=-9/7 and the slope=3/7
This comment has been removed by the author.
ReplyDeleteThis comment has been removed by the author.
ReplyDeleteSome more study problems
ReplyDelete4.3 23
Graph the intersection of each pair of inequalities.
x+y>-5 and y<-2
Write each inequality as a compound inequality and graph its solution set in the rectangular coordinate plane.
ReplyDelete4.3 25. IxI is greater than or equal 3
4.5 Deside if these relations define y as a function of x and give the domain.
ReplyDelete27. y=2x-6
Decide if these relations define y as a function of x and give the domain.
ReplyDelete37. y=2/x-9
Graph the linear function and give the domain and range.
ReplyDelete69. f(x)=-2x+5
Graph each linear function. Give the domain and range.
ReplyDelete73. g(x)=-4
4.6 solve each problem involving variations.
ReplyDelete23. Picture is in the book
For a body falling freely from rest(disregarding air resistance), the distance the body falls varies directly as the square of the time. If an object iis dropped from the top of a tower 576 ft high and hits the ground in 6 seconds how far did it fall in the first 4 sec?
Solve each problem involving variation.
ReplyDelete25. The current in a simple electrical circuit is inversly proportional to the resistance. If the current is 20 amperes( an ampere is a unit for measuring current) when the resistance f 5 ohms, find the current when the resistance is 7.5 ohms.
I will start posting some replies to the problems to start it off.
ReplyDelete27. x+2y=5
(0, ) ( ,0) (2, ) ( ,2)
x+0=5
x=5
0+2y=5
y=5/2
2+2y=5
2y=3
y=3/2
x+2(2)=2
x+4=2
x=-2
(0, 5) ( 5/2,0) (2, 3/2) (-2 ,2)
73. g(x)=-4
ReplyDeletex =-2 0 2
y = 2 -4 -2
g(0)=-4
Range=-4
Domain= Infinity and negative infinity
29. 4x-5y=20
ReplyDelete(0, )( ,0)(2, )( ,-3)
-5y=20
y=-4
4x=20
x=5
4(2)-5y=20
8-5y=20
y=-12/5
4x-5(-3)=20
4x+15=20
x=5/4
(0,-4 )(5 ,0)(2, -12/5)( 5/4,-3)