Which equation describes the four ordered pairs (-1,-3), (0,1), (2,9), (3,13)? A. y=2x+1 B. y=4x+1 C. y=4x-1 D. y=2x-1

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Which equation describes the four ordered pairs (-1,-3), (0,1), (2,9), (3,13)? A. y=2x+1 B. y=4x+1 C. y=4x-1 D. y=2x-1

Mathematics
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B
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Other answers:

put the values of x and y in the equations and find in which case 4 of them are satisfying the equation.
Or there's a more systematic way of doing it:
They give you the point (0,1) which is |dw:1358396550543:dw| your y-intercept in the formula y = mx+b, so b = 1 Now for the slope, take two points and calculate it using the slope formula: If we take points (-1,-3) and (0,1):\[m=\frac{(-3)-(1)}{(-1)-(0)}= \frac{-4}{-1}=4\] So, y = 4x+1
(And I guess you can assume the other points are valid for this equation since there is no option such as "none of the above")
What sritama told you is perfectly valid as well, but perhaps a bit more time consuming

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