Answer:
x = 24 and y= −73/9
Step-by-step explanation:
Let's solve your system by elimination.
−2x−9y=25;4x+9y=23
------------------------
−2x−9y=25
4x+9y=23
Add these equations to eliminate y:
2x=48
Then solve2x=48for x:
2x/2 = 48/2
(Divide both sides by 2)
x=24
Now that we've found x let's plug it back in to solve for y.
Write down an original equation:
Substitute24forxin−2x−9y=25:
(−2)(24)−9y=25
−9y−48=25(Simplify both sides of the equation)
−9y−48+48=25+48(Add 48 to both sides)
−9y=73
−9y/−9 = 73/−9
(Divide both sides by -9)
y= −73/9
y=x-1
y=-2x-4
although I cant summon a graph for this one, I can give cords
for first graph (-2,-3),(-1,-2),(0,-1), (1,0),(2,1)
For second graph the slope is down 2 over 1, and begins at (0,-4).
(-2,0)(-1,-2),(0,-4),(1,-6),(2,-8)
Sqrt 80 = 8.94
d = sqrt[(x-x)^2 + (y-y)^2]
d = sqrt [(6-2)^2 + (-9 - - 1)^2]
d = sqrt [(4)^2 + (-8)^2]
d = sqrt (16 + 64)
d = sqrt 80
d = 4 sqrt 5 = 8.94
if i am correct the answer is A
