using the graph f (x) = - 2/3 x - 1
Determine f(6)
Determine f(– 9)
Determine x if f(x) = –7
Determine x if f(x) = 1
Determine the x-intercept
Determine the y-intercept
+118667 Determine f(6)
Just substitute 6 for x in the equations
f (x) = - 2/3 x - 1
f (6) = - 2/3 *6 - 1 = -4-1 =-5 So one point on the graph is (6,-5)
Now find f(-9)
Determine x if f(x) = –7
this time it is the other way around
You have to solve
-7=-2/3x-1
That is a good start for you.
