Someone please hurry and help with number 4 and 6

4.) y= 3x-2 6) y= 4

Step-by-step explanation:

4.

m= 3 , (-2,-8)

y-(-8) = 3(x-(-2))

y+8= 3x+6

y= 3x-2

6.

m= 0 , (5,4)

y- 4= 0(x-5)

y= 4

y= 4

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.