Answer:
y = 1/2 x + 5.5
Step-by-step explanation:
Given the slope and one ordered pair, you can plug in the x and y values from the pair into the formula "y = mx + b" to determine b, which is the y-intercept.
In this case, -7 is the x value, and 2 is the y value.
2 = 1/2 (-7) + b
2 = -7/2 + b
Convert -7/2 to a decimal to get -3.5
2 = -3.5 + b
add 3.5 to both sides to isolate b
5.5 = b
Now that you have the y-intercept, you can write the equation in the new form:
y = 1/2 x + 5.5
