Chapter 8.7, Problem 17E

To determine

To match:

The given function with its graph.

Answer to Problem 17E

The graph of function $f(x)=2x-1$ would be:

Explanation of Solution

Given:

A function and 3 graphs: $f(x)=2x-1$ .

Concept used:

We know that slope-intercept form of an equation is $y=mx+b$ , where m represents slope of line and b represents the y -intercept.

Calculation:

Upon looking at our given function, we can see that it is in slope-intercept form. The slope of our given line is 2 and the y -intercept is $-1$ .

Since slope of our given line is positive, so the graph of function will be uphill. With each change is x , the value of y will increase by 2 units.

Upon looking at our given graphs, we can see that graph represented by option C is correct choice as its slope is 2 and graph intersects y -axis at point $(0,-1)$ .