x, x
1.7
Step-by-step explanation
Step 1
we can see in the graph, that :
the solutions of the equation f(x)=0, are the values where y =0 , it is when the line crosses the x-axis, so the solution of the first blank is
x
Step 2
and, the solution of the inequality
is the set of values wich the graph is above the x-axis
Step 3
now, for the next question, let's check the points where the line crosses the x-axis, and the intervals where the lines is above the x-axis
we can see the solution of f(X)=0 are
Finally, check the interval where the graph is above the x-axis, it is from a to 7, in interval notation
I hope this helps you