<u>x-intercepts are found by setting y=0</u>

<em>factor out a 2</em>

<em />

<em>roots should be </em>x=-1,5
therefore,
x-intercepts are (-1,0) and (5,0)
<u>
</u><u>y-intercepts are found by setting x=0</u>


therefore,
y-intercept is (0,-10)
We see a right triangle here.
Use the Pythagorean Theorem:
a^2+b^2=c^2
a & b=legs
c=hypotenuse
a^2+15^2=20^2
a^2+225=400
a^2=175
a=13.2287565553
a=13.2
The missing side is 13.2cm
2850*24/(4*24+18)
The light bulb consumes 600 watt-hours per day.