Carcass wrote:
Attachment:
#GREpracticequestion The plot above shows the.jpg
The plot above shows the graph of function f(x). For what integer value of x in the interval shown does f(x) = x + 1?
First we need to understand what it means to say "
the graph of function f(x)"
Here's an example:
If f(x) = 2x - 3, then:
the graph of function f(x) is the SAME AS
the graph of y = 2x - 3For what integer value of x in the interval shown does f(x) = x + 1?This is the same as asking, "for what integer value of x does y = x + 1?"
Notice that, if y = x + 1, then we're saying that the y-value is ONE GREATER THAN the x-value.
So, we need to find a point on the graph such that the y-coordinate is ONE GREATER THAN the x-coordinateWhen we scan the points on the graph, we can see that the point (-1, 0) lies on the graph.
At this point, x = -1 and y = 0
So, at the point (-1, 0), the y-coordinate is ONE GREATER THAN the x-coordinate
Answer: -1
Cheers,
Brent