Final answer:
To find three pairs of x and y values for the equation y = 3x + 4, we plug in three different x values (for example, 0, 1, and -1) into the equation and calculate the corresponding y values, obtaining the pairs (0, 4), (1, 7), and (-1, 1).
Step-by-step explanation:
To determine three pairs of x and y values that make the equation y = 3x + 4 true, we can choose any three values for x and compute the corresponding values of y.
- Let's take x = 0. Plugging this into the equation gives us y = 3(0) + 4, which simplifies to y = 4. So, one pair is (0, 4).
- For x = 1, the equation yields y = 3(1) + 4, simplifying to y = 7. Thus, another pair is (1, 7).
- Choosing x = -1 results in y = 3(-1) + 4, which is y = 1. Hence, a third pair is (-1, 1).
These pairs are points on the line represented by the equation y = 3x + 4, and plotting these points on a graph would show that they all lie on a straight line.