The line that goes through those points would just be a plain vertical line because they have the same x-value! Therefore, the equation would just be x=6. And the slope of a vertical line is always undefined since there is no variation in the x-values.
If you tried to use the slope formula: m= y2-y1/x2-x1 , you would get 7-(-3)/4-4
since 4-4=0, the denominator will be 0 and any number divided by 0 is undefined!
Answer:
{x,y} = {-2,2}
Step-by-step explanation:
Solve equation [2] for the variable y
7y = 7x + 28
y = x + 4
Plug this in for variable y in equation [1]
-8x + 4•(x +4) = 24
-4x = 8
Solve equation [1] for the variable x
4x = - 8
x = - 2
By now we know this much :
x = -2
y = x+4
Use the x value to solve for y
y = (-2)+4 = 2
Solution :
{x,y} = {-2,2}
and this intersects at only one point so your answer is A
F(x) = 4x - 7
g(x) = 2x + 4
f(x) + g(x) = 4x - 7 + 2x + 4 = 6x - 3
(f + g)(-3) = 6(-3) - 3 = -18 - 3 = -21.
Answer:
The midpoint is (9,6)
Step-by-step explanation:
The midpoint is just the average of the two end points.
x: (5 + 13)/2 = 18/2 = 9
y: (1 + 11)/2 = 12/2 = 6
The midpoint is (9,6)
Short side is about 3 1/2 squares so 3 1/2 feet
long side is 7 squares so 7 feet
perimeter = 7 + 7 + 3 1/2 + 3 1/2 = 21 feet