Answer:
The negative regions of a function are those intervals where the function is below the x-axis. It is where the y-values are negative (not zero). y-values that are on the x-axis are neither positive nor negative. The x-axis is where y = 0.
Step-by-step explanation:
Answer:
Step-by-step explanation:
The line has a slope of -1/3. For lines to be perpendicular there product must equal negative 1
m1(m2)=-1
-m/3=-1
m=3
So we know our line has a slope of three so
y=3x+b, we can solve for the y intercept, b, using point (-2,8)
8=3(-2)+b
8=-6+b
b=14, so our line is
y=3x+14
Answer:
0.783
Step-by-step explanation:
To find first r and then r square for the data
correlation coefficient of x and y = Cov (x,y)/std dev x * std dev Y
Cov (x,y) = E(xy) -E(x)E(y)
Hence calculations would be as follows:
x y xy
1 2 2
2 10 20
5 5 25
7 18 126
10 25 250
Mean 5 12 84.6
Cov E(xy)-E(x)E(y) 24.6
r 0.884640297
r^2 0.782588454
so answre is 0.783 after rounding off.
Answer:
8.94
Step-by-step explanation:
Answer:
y=0
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
2.6y-4/15y+7/6y=7/3y
2.6y-(-)4/15y+7/6y=7/3y
(2.6y-4/15y+7/6y)=7/3y (combine like terms)
7/2y = 7/3y
Step 2: Subtract 7/3y from both sides.
7/2y - 7/3y = 7/3y - 7/3y
7/6y = 0
Step 3: Multiply both sides by 6/7
6/7 . 7/6y = 6/7 . 0
y = 0
