I think you have to figure out the gradient, so you take the 2 points and put it into the equation
change in y divided by change in x aka
y2-y1/x2-x1
so for question 3:
y2=4 and y1=3
(taken from the first and second coordinates)
x2=3 and y1=7
put these values jnto the equation
4-3/3-7 = 1/-4 (can be written as negative 1/4)
for question 4 its the same thing:
y2=9 and y1=5
x2=4 and x1=2
put into equation
9-5/4-2 = 4/2
hope this helps, im also hoping your teacher already has taught this because i didnt go into detail of where the equation came from, if not ask me and ill gladly help X
Given:
Reservation fee = $19
Additional fee = $6 per hour
The chemistry club wants to spend at most $19 on renting the room.
To find:
The possible numbers of hours the chemistry club could rent the meeting room.
Solution:
Let n be the number of hours the chemistry club could rent the meeting room.
Reservation fee = $19
Additional fee for one hour = $6
Additional fee for n hours = $6n
Total fee = $(6n+19).
The chemistry club wants to spend at most $19 on renting the room. It means the total fee must be less than or equal to 19.

Subtract 19 from both sides.

Divide both sides by 6.

Time can not be negative. So n=0.
Therefore, the possible numbers of hours the chemistry club could rent the meeting room is 0.
Answer: 0 < x < 5.6
Step-by-step explanation:
The sides of triangle:
Any two sides added together have to be larger than the third side
So:
2.8 - 2.8 < x < 2.8 + 2.8
0 < x < 5.6
90+ 38 +x = 180
128 +x = 180
X= 52, y= 137
Hope this helps!
Answer:
130 fj is a little bit of a good job for the first time in a new generation of companies in a little
Step-by-step explanation:
its 130 inches tall and a good job to do with my first day of work at a time when the first thing you can get to the point where