2 2/8=10/8 22/8=2 6/8 or 2 3/4
For roots r1 and r2, the factors are (x-r1)(x-r2)
r1=i
r2=-i
don't forget i^2=-1
(x-i)(x-(-i))=(x-i)(x+i)=x^2-i^2=x^2-(-1)=x^2+1
the function is
f(x)=x^2+1
The object's maximum height is the same as the y-coordinate of the vertex.To find that, first, finds the x- coordinate(t).You can find it by:
first identifying a,b and c.Multiply the b by negative 1 or simply change its sign and divide it by 2a.Afterward, plug the answer in the equation to find y, your answer.
(ax+bx²+c=-16t²+64t+80). Therefore, a=-6, b= 64 and c=80
-64/2(-16)=-64/-32=2
-16(2)²+64(2)+80=144 ft
So the maximum height of the object, when launched 64ft/sec from a platform that is 80 ft high, is 144 ft
Hope this helps(there are other methods)
Answer:
<h2>Y is the total cost of his visit</h2>
Step-by-step explanation:
This expression is similar the same as the equation of a straight line, so we could actually compare the expression and come up with an answer.
the equation of a straight line is
y=mx+c
y=45x+75
What does "x" represent?
x represents the number of hours worked by the electrician.
y represents the total cost of his visits
