We have to calculate the slope of this line;
Given two points (x₁,y₁) and (x₂,y₂) the slope of the line passes through these points is:
m=(y₂-y₁)/(x₂-x₁)
We have many points in this line, we can choose any two points in this line.
For example:
(-4,-1)
(1/2,3)
The slope will be: m=(3+1)/(1/2+4)=4/(9/2)=8/9
Point-slope form of a line; We need a point (x₀,y₀)(any point of this line) and the slope "m";
y-y₀=m(x-x₀)
For example; the point can be ((-4,-1) and the slope of this line is 8/9
y+1=(8/9)(x+4)
y+1=8/9 x+32/9
9y/9+9/9=8/9 x+32/9
9y+9=8x+32
-8x+9y=32-9
-8x+9y=23 (equation in standard form)
Answer: A. -8x+9y=23
Answer: $42
Step-by-step explanation:
His total pay is $52.50 = 8.47x6
if he spent 1/5 then he has 4/5 left. 4/5 times 52.50 = 4(10.50 = $42
Answer:
The solution of this system of linear equations is .
Step-by-step explanation:
Let be the following system of linear equations:
(1)
(2)
From (1) we clear :
And we apply this variable in (2):
And the value of is:
The solution of this system of linear equations is .
Answer:
9
Step-by-step explanation:
2,3,4,7,7,7,9,9,14,17,21
21,17,14,9,9,7,7,7,4,3,2
3,7,7,7,9,9,17,21
2/3 = 11/x
(11)2/3 = 11/x(11)
11/3 = x
x = <span>3.66666666667
So your answer is ....
x = 3.7
Good luck! :))
</span>