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21 votes
21 votes
Write a linear function of f with f(-3)=-2 and f(-2)=3

User Sguan
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1 Answer

12 votes
12 votes

Answer:

y=5x+13

Explanation:

when x=-3, y=-2, and when x=-2, y=3. we know that every time x increases by 1, y also increases by 5. This means that the slope is 5. to find the y-intercept, we need x to be 0. to find that, increase x by 2. if x increases by 2, then y would also increase by 10. add 10 to 3 and add 2 to -2 to get x=0 and y=13. the coordinates would be (0,13). the y-intercept is 13. now that we have enough information, we can conclude that y=5x+13. To check your answer, plug in the values for x.

User Sundeep
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