so you're going to need to find the slope. in order to do that use (y2-y1)/(x2-x1)
(7-(-2))/(0-8)
simplify
9/-8
simplify -9/8
now using y=mx+b, we need to find b. so we can plug in the coordinates of (0,7) or (8,-2). let's use (8,-2) because it involves more math.
y=mx+b
-2=(-9/8)(8)+b
multiply (-9/8) by 8 to get -9
-2=-9+b
add 9 to both sides
7=b
so our equation is now
y=-(9/8)x+7
The answer is A
Hope this helps!!
Answer:
The answer to your question is slope = -2
Step-by-step explanation:
Data
A = (5, 9)
B = (4, 11)
slope = m = ?
Slope means the steepness of a line.
Process
1.- Write the formula to calculate the slope
m = (y2 - y1) / (x2 - x1)
x1 = 5 y1 = 9 x2 = 4 y2 = 11
2.- Substitution
m = (11 - 9) / (4 - 5)
3.- Simplification
m = 2/-1
4.- Result
m = -2
Because of the order of operation, you would first do the division, which makes the expression 8-6+3. Now you would perform them left to right, first into 2+3, then get your answer of 5.
