Neeed hellp asap noww​

-3/5

(0,4)

Step-by-step explanation:

The slope, or m, is the change in y over the change in x. So to find m calculate how much y changes then divide that by how much the x value changes. On the table, the y-values decrease by 3 each time, and the x-values increase by 5 units each time. This means m must equal -3/5.

The y-intercept is when the line crosses over the y-axis. This will also be when x=o. So to find the intercept find when x=0; in this case, when x=0, y=4. This means the intercept is (0,4).

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12