Question

Determine the type of boundary line and shading for the graph of the inequality 5x + y greater than or equal to -10.

Answer 1

Dashed line with shading on the side that includes the origin

Solid line with shading on the side that does not include the origin

Dashed line with shading on the side that does not include the origin

Solid line with shading on the side that includes the origin

Answer 2

Solid line means there is an equal sign in the problem
Dashed line means there is no equal sign in the problem
The origin is (0,0)...if you sub this into your inequality and the inequality comes out true, then the shading includes the origin. If it is not true, the shading does not include the origin.

lets begin...
5x + y >= -10 .... there is an equal sign, so it has a solid line

(0,0)
5(0) + 0 >= -10
0 >= -10 (false)
shading that does not include the origin

conclusion : Solid line with shading on the side that does not include the origin

Answer 3

if u graph it though, the shading is over (0,0)

Answer 4

wait...I messed up...lol.....
(0,0)
5x + y >= -10
5(0) + 0 >= -10
0 >= -10 (true)

solid line with shading that includes the origin

The origin is (0,0)...x = 0 and y = 0
sub those points into the inequality and see if it makes the inequality true...if it does, it includes the origin

Answer 5

so its d?

Answer 6

yep..its D

Answer 7

thx, can u help me with another 1?

Answer 8

sure

Answer 9

The following table shows the values of f(x) and g(x) for different values of x:
Which of the following best describes the function f(x) + g(x)?
a. 2x + 2

b. 2x + 2

c. 2x + 2x

d. 2(2x)

Answer 10

hold on
i messed up on the multiple choise

Answer 11

I am sorry....I am not good with functions. You will need someone who knows more about this to help you. Again, I am sorry

Answer 12

a. \[2^{x+2}\]
b. \[2^{x}+2\]
c. \[2^{x}+2x\]
d. \[2(2^x)\]

Answer 13

nvmd... im guessing

Answer 14

I got it right!!!

Answer 15

its b