Answer:
Step-by-step explanation:
we have to find the dot product here.
From the formula of dot product of vectors,
we know-
if X=<a,b,c> and Y=<d,e,f>
Then dot product of X and Y is-
X.Y=ad+be+cf
Here, we get
v=<2 , -8 , -8>
and w=<-2 , 6 , -5>
So, the dot product is-
v . w=2(-2)+(-8)(6)+(-8)(-5)
=-4-48+40
=-52+40
=-12
So,
v . w= -12
Answer:
f(x)=−3x+6
Step-by-step explanation:
The equation has the form y=mx+b.
- m is the slope of the equation. The points on the line are -3/1 apart. This is -3x in the equation.
- b is the y-intercept where the line crosses the y-axis. The line crosses at 6 on the y-axis. This is +6 int he equation.
The equation of the line is y=-3x+6.
Answer:
-(x^2-2*x*3+3^2)+4=-x^2+6x-9+4=x^2+6x-5
Step-by-step explanation:
