2 x - 5y = 13
2 × -1 - 5 × -3 = 13
Answer:
(-1, -3)
Answer:
D. 6
Step-by-step explanation:
Range of any data set is the difference between the maximum value and the minimum value.
From the graph given above, the least data value plotted on the graph is 1.
Minimum value = 1
The maximum data value = 7
The range of the data set = max - min
Range = 7 - 1
Range = 6
Given parameters:
Coordinates of end points = (2, -3) and (-6,5).
Slope of line = 
Unknown:
Equation of the line with the given slope = ?
Solution:
Let us find the coordinates of the mid-point of the line given.
Since the end points are (2, -3) and (-6,5);
Midpoint;
x, y =
,
x, y =
,
= -2 , 1
The coordinate of the mid point = -2,1
Equation of a line is;
y = mx + c
x and y are the coordinates
m is the slope
c is the y intercept
We need to find c in order to fully develop our equation;
y = mx + c
y = 1 , x = -2 and m = 
So,
1 =
x (-2) + c
c = 1 +
= 
Now, the equation of the line is;
y = -2x +
Multiply through by 7,
7y = -14x + 25
The equation of the line is 7y = -14x + 25
Answer:
see below
Step-by-step explanation:
x=0.5. by substitution we get 10(0.5)-4=5-4=1