D. y = x-3 14. Use the graph to answer the question below. What is the equation of the line PQ? Write your answer in slope-intercept form.​

y = 2x + 4

Step-by-step explanation:

Your photo is very low quality.

I will assume the grid lines are one unit apart.

As x increases three units from Q to P, y increases 6 units.

The slope is m = Δy/Δx = 6/3 = 2

The y intercept b is 4 units above the x axis

y = mx + b

y = 2x + 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.