f(x)= mx, x<3
n, x=3
-2x+9 x>3
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f(x)= mx, x<3
n, x=3
-2x+9 x>3
First pick a value for x>3 i.e. x=4 then solve n such that -2(4)+9 = n
Once you know what n is then for x=3, solve mx=n, will give you m.
You want to findQuote:
Originally Posted by sluggerbroth
so that
.
Hello, sluggerbroth!
Quote:
. . \;=\;\begin{Bmatrix}mx & \text{ if } x < 3 \\ n & \text{ if }x = 3 \\ -2x+9 & \text{ if }x > 3 \end{array})
Make a sketch.
When, we have a line through the origin with slope
When, we have a point
When, we have the line
. . It has y-intercept 9 and slope -2.
We want the three graphs to "meet" at
Can you work it out?Code:\|
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- - * - - - + - * - -
* | 3 \
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