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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

 Jul 21, 2020
 #1
avatar+27607 
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The graph would make this much easier ! cheeky

 Jul 21, 2020
 #2
avatar+111077 
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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.

 Jul 21, 2020

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