Given : f(x) = 3x + 1
We get f(2) by substituting x = 2 in the given Function
⇒ f(2) = 3(2) + 1 
⇒ f(2) = 6 + 1 = 7
Option C is the Answer
 
        
             
        
        
        
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<em>Hi there!</em>
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<em>2.3 to 1 significant figure.</em>
<em>= 2</em>
<em>❀Hope this helped you!❀</em>
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Hello! The y-intercept is (0, 4), because the line crosses 0 in the x-axis at that point. We can cross out C and D, because those don't show that. The slope is rise/run. You would go up 3, and go to the right once. If you need to, solve for slope by doing y2 - y1/ x2 - x1. Let's use the point (0, 4) and (1, 7) as an example. We would set it up like this: 7 - 4 / 1 - 0. Solving that would give us 3/1 or just simply three. The slope is positive 3 and the y-intercept is (0, 4). The answer is A.
        
             
        
        
        
Answer:
30.39
Step-by-step explanation:
ok, think of it like 21+9. That =s 30 right? so then add the .39 and you get 30.39.