x = - 
isolate - 6x by subtracting 9 from both sides
- 6x = 16 ( divide both sides by - 6 )
x = 
= -
1st factor is 3x:
<span>= 3x(x² - 8x + 15) </span>
<span>2nd & 3rd factors: </span>
<span>x² - 8x + 15 = 0 </span>
<span>x² - 4x = - 15 + (- 4)² </span>
<span>x² - 4x = - 15 + 16 </span>
<span>(x - 4)² = 1 </span>
<span>x - 4 = 1 </span>
<span>= x - 4 - 1, = x - 5 </span>
<span>= x - 4 + 1, = x - 3 </span>
<span>Answer: 3x(x - 5)(x - 3) are the factors. </span>
<span>Proof: </span>
<span>= 3x(x - 5)(x - 3) </span>
<span>= 3x(x² - 5x - 3x + 15) </span>
<span>= 3x(x² - 8x + 15) </span>
<span>= 3x³ - 24x² + 45x</span>
1. What is an equation of a line, in point-slope form, that passes through (1,-7) and has a slope of -2/3?
Point Slope form y − y1 = m(x − x1)
Y1: -7 x1:1 slope :-2/3
Y-(-7)=-2/3(x-1)
Y+7=-2/3(x-1)
2. What is the equation of a line, in point-slope form, that passes through (-2,-6) and had a slope of 1/3?
Y-(-6)=1/3(x-(-2))
Y+6=1/3(x+2)
3.What is an equation in point-slope form of the line that passes through the points (4,5) and (-3,-1)
SlopeM: =change in y/change in x
M= -1-5/-3-4
M= -6/-7
M=6/7
So now slope:6/7, point (4,5)
Y-y1=m(x-x1)
Equation in point slope
Y-5=6/7(x-4)
Answer:
Well a shape reflecting across the x axis will look like some thing in the image below.
Look at both images.
