Answer:
C. 1, -9 
Step-by-step explanation:
I just put it on desmos
 
        
             
        
        
        
Remark
If the lines are parallel then triangle RQS will be similar to triangle RTP
From that, all three lines in one triangle will bear the same ratio to all three lines of the second triangle.
Givens
PQ = 8
QR = 5
RS = 15
ST = x + 3
Ratio
QR/RP = RS/RT
Sub and solve
RP = 5 + 8
RP = 13
RT = 15 + x + 3
RT = 18 + x
5/13 = 15 / (18 + x) Cross multiply
5(18 + x) = 195 Remove the brackets on the left.
90 + 5x = 195 Subtract 90 from both sides.
5x = 105 Divide by 5
x = 105/5
x = 21 Answer <<<<<<<
 
        
             
        
        
        
This ones kinda hard I'm not really sure, but looking at the table, when f(x) = 1, g(x) = 1. So therefore it is yes, and Im guessing you know the negative and positive x coordinates/zero thing, so I think you should be correct. Sorry if this is wrong, not too sure, but hopefully it gives you a better idea.
        
                    
             
        
        
        
Answer:
the answer is √24,5.1,√33
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
Given
 - 8 < 4 ( add 8 to both sides )
 - 8 < 4 ( add 8 to both sides )
 < 12
 < 12
Multiply both sides by 4 to clear the fraction
j < 48 → D