Question

The graph of a linear function passess through the points (3, 19) and (5, 23). Write an equation for the function. Show your work

Answer 1

Answer:

y = 2x +13

Step-by-step explanation:

1. find the slope by using the formula y2-y1

                                                             --------

                                                             x2-x1

which is

23 - 19           4

------------ =     ---   = 2

5-3                 2

2. finding the y intercept

so to find the y intercept you plug in the numbers to this formula

y-y1 = m (x-x1)

y - 19 = 2 (x -3)

y - 19 = 2x -6

  +19          +19

y = 2x +13