What is the value of the function f(x)=2x-5 when x=22

The answer is 39 when you plug 22 as the x value of the function.
F(x)=2x-5
F(x)=2(22)-5
F(x)=44-5
F(x)=39

Where m is the slope of the line and b is the y-intercept of the line, or the y-coordinate of the point at which the line crosses the y-axis. to write an equation in slope-intercept form, given a graph of that equation, pick two points on the line and use them to find the slope. this is the value of m in the equation.