Y = mx + b
m = (8 - 0)/(0 - -2) = 8/2 = 4
y = 4x + b
substitute in set of coordinates:
0 = 4(-2) + b
0 = -8 + b
b = 8
y = 4x + 8
Answer: Choice C) -11
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Explanation:
The first equation given is y = 3 - 1/2x
In other words, y is the same as 3 - 1/2x.
We can replace y in the second equation with 3 - 1/2x
This is known as substitution (think of a substitute teacher who is a temporary replacement for your teacher)
Doing this leads to...
3x+4y = 1
3x+4*y = 1
3x+4*( y ) = 1
3x+4*( 3 - 1/2x ) = 1 <<--- y has been replaced with 3-1/2x
3x+4*(3) +4*(-1/2x) = 1
3x+12-2x = 1
3x-2x+12 = 1
x+12 = 1
x+12-12 = 1-12 <<-- subtracting 12 from both sides
x = -11
Which is why the answer is choice C) -11
Answer:
y=2/3x+2
Step-by-step explanation:
Answer:
Step-by-step explanation:
The Number makes the number sentence true 92+87= __+92 is
HENCE
the number is 87.
