Given f(x)
-4x - 10 and f(x) = 10. what is the value of x?

x = -5

Step-by-step explanation:

f(x) = -4x - 10 and f(x) = 10

Step 1: Substitute 10 for f(x)

10 = -4x - 10

Step 2: Add 10 to both sides to get x alone

10 = -4x - 10

+10       +10

20 = -4x

Step 3: Divide both sides by -4 to get x alone

20 = -4x

-4      -4

x = -5

(0, - 1) maximum

Step-by-step explanation:

The vertex is the turning point of the graph.

That is vertex = (0, - 1 )

Since the graph opens down then it is a maximum