Question

help

Answer 1

@Mehek

Which of the following statements best describes the graph of x + y = 4?

It is a line which intersects the x-axis at (4, 4).
It is a line which intersects the y-axis at (4, 4).
It is a line joining the points whose x- and y-coordinates add up to 8.
It is a line joining the points whose x- and y-coordinates add up to 4.

Answer 2

What do you think it is?

Answer 3

ummm D?

Answer 4

Correct

Answer 5

I dont know this one. Sorry @cookiemonster :(

Answer 6

http://prntscr.com/gzzw2r

Answer 7

^

Answer 8

just in case you cant see what the question says this is it:
A family of 3 children and 2 adults visited a health club. The club charges $y an hour for each child and $x an hour for each adult. If the family does not want to spend more than $30 an hour at the health club, which of the following graphs best models the situation?

Answer 9

Ok so first we need to make an equation

Answer 10

ok

Answer 11

@Georgie

Answer 12

It is y for children and there are 3 children
so 3y
It is x for adults and 2 adults so 2y
Not more than $30 is ≤ 30
Put them together
3y + 2x ≤ 30
If you graph that, the shading is below the line so your answer can be either A or C
The y intercept is (0, 10) and the x intercept is (15, 0)
So between Graph A and C, which matches that^?

Answer 13

A?

Answer 14

Correct

Answer 15

I have to go now so someone else will have to help

Answer 16

great!
aw man

Answer 17

Given the system of equations presented here:

2x + 4y = 14
4x + y = 20

Which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated?

Multiply the second equation by −4 to get −16x − 4y = −80
Multiply the second equation by −1 to get −4x − y = −20
Multiply the first equation by 2 to get 4x + 8y = 28
Multiply the first equation by −1 to get −2x − 4y = −14