Answer:
a linear equation normally looks like y = mx + b, where m and b are constants, x is the independent variable, y is the <u>dependent variable.</u>
Step-by-step explanation:
<span>{(c,e),(c,d),(c,b)} is NOT a function since the input c has multiple outputs (e,d,b). So choice B is out
</span><span>{(b,b),(c,d),(d,c),(c,a)} is NOT a function either. The input 'c' corresponds to the output 'd' and 'a' at the same time. So choice C is out too
</span><span>
Choices A and D are the answer. They are functions since any given input corresponds to exactly one output.
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The range of communication is about 55 meters.
Answer:
= -4x + 7 is the correct answer
Step-by-step explanation:
