Question

The table repreent a linear function. A two column table with ix row. The firt column, x, ha the entrie, negative 2, negative 1, 0, 1, 2. The econd column, y, ha the entrie, negative 2, 1, 4, 7, 10. What i the lope of the function?

Answer 1

Answer is slope of 3

Step by step

Using slope formula y2 - y1 over x2 - x1

Using points (-1, 1) and (-2, -2)

-2 -1 over -2 - -1 = -3/-1 = 3

Using points (1, 7) and (2, 10)

10 - 7 over 2 - 1 = 3

Since it’s a linear function we can conclude checking two pairs that equal 3, the slope is correct at 3