What is the slope of $y=4x-3$ at $x=-1$ ?

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Answer 1 · 2016-01-09T11:03:08

slope = 4

one form of the equation of a straight line is y = mx + c
where m represents the slope and c the y-intercept.

In this case y = 4x - 3 is in this form and by comparison can see that m = 4. This will be the same for all values of x.

hence: slope =4

I have included the graph of y = 4x - 3 to illustrate this.
graph{4x - 3 [-10, 10, -5, 5]}

What is the slope of y=4x-3y=4x-3 at x=-1x=-1?