What is the y-intercept of the line y = 4x – 4?

What is the domain and range of the following function? f(x)={(1,2) (2,3) (3,4) (4,5)}

What is the range of f(x)=2x ^2 + 1

its suppose to say 2x squared

y intercept =-4

domain {1,2,3,4}

Range of 2x^2+1 is from 1 to infinity.

Least value is 1 when x=0

Range = (y | y >=1)

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