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vovangra [49]
3 years ago
12

If f(x)= mx+ c , f (1)=5 and f(-2)=-1​

Mathematics
1 answer:
taurus [48]3 years ago
3 0

Answer:

y = 2x + 3

Step-by-step explanation:

We can find the slope.

\frac{ 5 + 1}{1 + 2 }  =  2

so m is 2

y = 2x + c

Plug one the equations in to find c.

- 1 = 2( - 2) + c

- 1 =  - 4 + c

3 = c

so the equation is

y = 2x + 3

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