Answer:
y = 2x - 4
Step-by-step explanation:
Given point (1, -2) so x = 1, y = -2
Just plug in and verify
<u>y = x + 5 </u>
<u>y = 2x + 1 </u>
<u>y = 2x - 4 </u>
<u>y = x -2</u>
9514 1404 393
Answer:
-4
Step-by-step explanation:
In a linear equation, the terms "unit rate", "rate of change", "constant of proportionality", and "slope" all refer to the coefficient of x (the independent variable).
Here, the coefficient of x is -4.
The slope is -4.
_____
<em>Additional comment</em>
Strictly speaking the "constant of proportionality" only refers to the x-coefficient (k) when the equation is of the form ...
y = kx . . . . . with no added constant
"Slope", "unit rate", and so on, can also refer to the x-coefficient (m) when the equation has a non-zero y-intercept (b):
y = mx + b
You are asking about what number must you multiply another random number by to make that random number decrease by 85% of that random number, right?
If the above is correct, then the number is 0.15
because 100% - 85% = 15% and 15% = 15 / 100
= 0.15
Answer:
x = 10, -2
Step-by-step explanation:
Your Welcome my friend :)
7+5=m(-2-4), 12=-6m, m=-2, y+5=-2(x-4), y=-2x+8-5, y=-2x+3