Question

WILL MEDAL Which of the following statements best describes the graph of 4x − y = 1?

It is a straight line joining the points (0, −1), (1, 3), and (−1, −5).
It is a straight line joining the points (4, −3), (−1, 2), and (−4, 5).
It is a curve joining the points (4, −1), (2, 3), and (4, 1).
It is a curve joining the points (0, −1), (−1, −3), and (1, 5).

Answer 1

which answer do you think it is and why?

Answer 2

I think it is c

Answer 3

But am I right

Answer 4

WHYYYYY

Answer 5

and no, you are incorrect

Answer 6

you can check by substituting one of the points into the equation

if we look at the first point of c
(4,-1)

substitution
4(4)- (-1) = 1
16 +1 =1
\(17 \ne 1\)

hence c is incorrect

Answer 7

Hint: "4x − y = 1?" is a LINEAR equation. Think: What does that mean? To what power are x and y raised?

If you can answer this question correctly, you could immediately eliminate 2 of the 4 possible answer choices.