Can someone help me please
1 answer:
Answer:
7) -5/28
8) -17/14
9) 2/3
10) 9/23
11) -6/7
12) -22/31
Step-by-step explanation:
To find slope with just 2 points given, you must do:
This will give you your Slope, written as rise/run.
You're essentially subtracting the y values, and the x values.
Let us do #7 for example:
5-0 = 5
-16-12 = -28
So slope = -5/28.
Apply this for all other questions, and be sure to watch out for the signs so you don't make a mistake. Also don't forget to simplify if you can.
Hope this helped :)
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Answer:
A
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
To calculate m use the slope formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (1, 6) and (x₂, y₂ ) = (2, 1)
m = = - 5, hence
y = - 5x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (1, 6), then
6 = - 5 + c ⇒ c = 6 + 5 = 11
y = - 5x + 11 → A