given that f is a linear function , f (4)=-5 and f (0)=3, write the equation that defines f i can find the averate rate of change and is -2but i cannot find the y int...
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Originally Posted by alessandromangione given that f is a linear function , f (4)=-5 and f(0)=3, write the equation that defines f i can find the averate rate of change and is -2but i cannot find the y int... you have the y-intercept
Any linear function can be written as f(x)= mx+ b. Knowing that f(4)= -5 tells you that 4m+ b= -5 and knowing that f(0)= 3 tells you that 0(m)+ b= 3. Solve those two equations for m and b.
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