# FNGR 2 | Lesson 1 | Explore (Function Matching)

Use the following functions to match them to the graphs

a.  $$f(x)= x^2-3x$$

b.  $$f(x)=x^2 +2x$$

c.  $$f(x) = 3•2^x$$

d.  $$f(x) = 4•(0.5)^x$$

e.  $$f(x) = -2x+5$$

f.  $$f(x) = 2x + 3$$

Did you find the following matches:  1 – b; 2 – c; 3 – d; 4 – f; 5 – a; 6 – e

After exploring and matching the expressions to the graphs, move on to the next exploration about the coefficients and the constants of quadratic functions.  Pay close attention to what $$a$$, $$b$$ and $$c$$ do and what impact they have on a parabola.  Don’t be shy, even try the wild side with negative coefficients and constant.  Download and explore, once you have explored all types return to this page.

What did you determine about $$a$$, $$b$$ and $$c$$ and how they effect a parabola?  Let’s see if you are on the right track.