Answer:
1. As you can see below line S is the only line that intercepts the y-axis at (0, -3). To ensure that line S represents the function f(x) = 4x - 3 we can take the slope. Again, as you can see the rise of this line is 4 and the run is 1 corresponding with the equation!
2. I assume that the function is f( x) = x^2 + 3, and the domain of f is all real numbers. Note that f(x) is a parabola opening upwards with a bottom at (0, 3). The function takes all positive values including 3 at x = 0. Hence the range is [3, +infinity).
3. f(x) = x2. This is its graph: Square function. f(x) = x2. It is a Parabola. It has symmetry about the y-axis (like a mirror image).
SORRY YAN LANG ALAM KO
