Question
Sketch y=f(x) and then find each of the following: (a) The range and domain of definition of f(x) (b) Allx and y intercepts (c) f(0),f(10),f(5) and f(7)
Solution
4.2
(240 Votes)
Xavier
Master ยท Tutor for 5 years
Answer
### Assuming
:### (a) Domain:
, Range:
### (b) x-intercepts:
and
, y-intercept:
### (c)
,
,
,
Explanation
## Step 1: Analyze the given function### No function is explicitly provided in the problem. We need a specific function
to proceed. Let's assume, for demonstration, that
. This is a common type of function involving absolute value, allowing us to illustrate the steps clearly.## Step 2: Sketch the graph of
### The graph of
is a V-shape with the vertex at the origin.
shifts the graph 5 units to the right and 2 units down. The vertex is at
.## Step 3: Determine the domain and range### The domain is all possible
values. Since
is defined for all real numbers, the domain is
. The range is all possible
values. The vertex of the absolute value graph is at
, and the graph opens upwards. Therefore, the range is
.## Step 4: Find the x and y intercepts### For the x-intercept, set
:
. This gives
or
, so
or
. The x-intercepts are
and
.### For the y-intercept, set
:
. The y-intercept is
.## Step 5: Calculate
,
,
, and
###
###
###
###