a. f(0) = 1.
b. The solution to f(x) = - 3 is x = ± 2
How to find the value of a function from the graph?
The y value of a point where a vertical line intersect a graph represents an output for the input x value.
According to the given question.
We have a graph of a function.
a. We have to find the value of f(0).
f(0) means find the value of y when x = 0.
So, from the graph we can see that at x = 0, the value of y is 1.
Hence, f(0) = 1.
b. We have to find the f(x) when x = -3.
This means that the value of x when y is -3.
Again, from the graph we can see
when y = - 3 there are 2 corresponding values of x, that is x = - 2 or
x = + 2
Hence, the solution to f(x) = - 3 is x = ± 2
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