First we write the formula: m = (change in y)/(change in x)

(13-15)/(5-3)-2/(-2)1Now we substitute one of the data points into the equation so we can find y (3, 15).15 - 312Then we calculated slope (m = 1) and y (6 = 12) and it becomes h = 1t +12no we substitute t = 8

h = 1(8) + 12

h = 20

To find the value of h when t = 8, we can use the equation h = 1t + 12.

Substituting t = 8 into the equation, we have:

h = 1(8) + 12

We can simplify this to:

h = 8 + 12

h = 20

Therefore, when t = 8, the value of h is 20.

To find the value of h when t = 8, we can use the equation h = 1t + 12.

Step 1: Substitute the value of t into the equation.
h = 1 * 8 + 12

Step 2: Perform the operation.
h = 8 + 12
h = 20

Therefore, when t = 8, h = 20.