Step-by-step explanation:
-4.5x -2y = -12.5 -------(1)
3.25x -y = -0.75 --------(2)
From (2) we can make y the subject of the relation
y = 0.75+3.25x -------(3)
Input 0.75+3.25x into y in (1)
-4.5x -2(0.75+3.25x) = -12.5
-4.5x -1.5- 6.5x = -12.5
-4.5x -6.5x -1.5 = -12.5
-11x = -12.5 +1.5
-11x = -11
x = 11/11
x = 1
If x = 1,substitute 1 into x in (3)
y = 0.75+3.25x
y = 0.75 +3.25(1)
y = 0.75 +3.25
y = 4
x = 1,y = 4
Answer: 3.9
Step-by-step explanation:
<u>sin 34 </u> <u> x </u>
1 7
Cross multiply and divide to get 3.9
Answer:
1/9
Step-by-step explanation:
Separate the fraction (1/9) from the variable x:
y = (1/9)x.
1/9 is the constant of proportionality.
Answer:
the first one is 1/45
the second one is 45
Step-by-step explanation:
i hope this helped
Answer:
Step-by-step explanation:
1. You just plot the points
2. To plot the line you have to find the slope and y-intercept
Slope = 
= 
= 
Slope =
Y-intercept = 
Y-intercept: y - 15 = 
(x - 2)
y - 15 = 
+ 15
Add 15 to both sides
y = x + 30 this is the equation of the line.
So you start with the starting point and then the slope!
