Reference no: EM13534483

1. Which of the ordered pairs is a solution for the equation 5x – 4y = 20?

A)  (–4, –5)    B)  (0, 5)    C)  (0, –5)    D)  (–4, 0)

11. Which of the ordered pairs 

(3, 1), (0, –4), (–4, 0), (–3, –7)

are solutions for the equation x – y = 4?

A) (–4, 0) and (–3, –7) C) (3, 1) and (–4, 0)

B) (0, –4) and (–3, –7) D) (0, –4), (–4, 0), and (–3, –7)

12. Find the slope of the line passing through the points (2, –5) and (–10, –5).

A)  –12    B)  Undefined    C)  1    D)  0

16. If y varies directly with x, and y = 56 when x = 4, find the constant of variation k.

17. Plot the point with coordinates (–4, 0).

19. Graph using the intercept method: x + 3y = 6.

22. Graph y = 4.

23. Plot the point with coordinates (–2, –4).