D. f(x)= x*-9x^o+2x^2-4x+10
Answer:
Do u have answer choices?
If u ask find the Equation using two points
Y= -4/5x + 2
Answer:
c
Step-by-step explanation:
When approaching 2 from the left, there is an open circle.
Also, the left part of the graph has a y-intercept of 2.
A mountaineer climbed 1000 feet at a rate of x feet/hour
1000 = x ( t 1 ) eq1
5000 = X ( t 2) eq2 ( he climbed additional at different rate )
the rate was 10 feet / hour less than twice the first rate
X = 2x - 10 eq3
take eq1 and eq 2
( total time = t 1 + t 2 = T)
T = 1000/x + 5000/X
but X = 2x-10
T = 1000/x + 5000/( 2x -10)
T = 1000/x + 5000/( 2(x-5))
T = 1000/x + 2500 / (x-5)
