Question

Dr. Math thinks he knows more than you about what is true and false world just because he's a doctor. He says that the equation y=17x+1 also includes the point (1,8). is Dr. Math right or wrong?
A. He's right
B. He's wrong
C. We need more information before we can say if he's right or wrong
D. None of the above

Answer 1

We have the following equation:
 y = 17x + 1
 Substituting the point (1, 8) we have:
 8 = 17 (1) +1
 Rewriting:
 8 = 17 + 1
 8 = 18
 We observe that the equation is not satisfied because both sides are different.
 Answer:
 B. He's wrong