Answer:
f(x) = 0.625x + 3.5
Step-by-step explanation:
Linear function equation : f(x) = mx + b
plug in numbers
equation 1: 1 = -4m + b
equation 2: 6 = 4m + b
e(1) + e (2): 7 = 2b, b = 3.5
plug b = 3.5 into e(1): 1 = 3.5 - 4m, 4m = 2.5, m = 0.625
f(x) = 0.625x + 3.5
