Answer:
vertex = (1/4 , -81/8)
Step-by-step explanation:
f(x) = y
f(x) = 2x²-x-10
a= 2
b= -1
c = -10
-b/2a
-(-1)/(2(2))
1/4
x = 1/4
y = 2x²-x-10
y = 2(1/4)²-(1/4)-10
y = 2/16-1/4-10
y = 2/16-4/16-160/16
y = -2/16-160/16
y = -162/16
y = -81/8
