Write a system of equations that has (2, 7.5) as its solution....
2006-10-15 10:33:02 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
You could write the equation of 2 lines whose intersection is the point (2, 7.5).
Example:
Line 1: line through (2, 7.5) and origin, (0, 0)
m = slope = (y2 - y1) / (x2 - x1) = (7.5 - 0) / (2 - 0) = 3.75
y = mx + b
──> y = 3.75x
Line 2: line through (2, 7.5) and (arbitrary choice) (0, 8)
m = slope = (y2 - y1) / (x2 - x1) = (7.5 - 8) / (2 - 0) = -0.25
y = mx + b
──> y = -0.25x + 8
So your system of equations is:
1) y = 3.75x
2) y = -0.25x + 8
2006-10-15 10:45:53 · answer #1 · answered by Anonymous · 0⤊ 0⤋
this is your conscience speaking..
read books
do your own homework
2006-10-15 17:41:18 · answer #2 · answered by macdoodle 5 · 0⤊ 0⤋
x + 0y = 2
0x + y = 7.5
is that what u mean?
2006-10-15 17:38:47 · answer #3 · answered by Morkeleb 3 · 0⤊ 0⤋
x + 5.5 = y
X = 2
Y = 7.5
Regards,
Mysstere
2006-10-15 17:36:20 · answer #4 · answered by mysstere 5 · 0⤊ 0⤋