What is the vertex of the graph of the function f(x) = x2 + 8x − 2 ?

The vertex is (-4,-18)

Step-by-step explanation: Given in ax² + bx + c  form

To get the x value, use the formula

a is 1 (implied) b is 8   x= -8/2  so x is -4    

Plug in to the equation ans solve for y.  "f(x)"  means"y output"

y = (-4)² + 8(-4) - 2

y = 16 -16 -2

y = -18

so the coordinates of the vertex:  (-4, -18)

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5