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loris [4]
2 years ago
9

What is an equation for the linear function whose graph contains the points (9, 7) and (4, −8) ?

Mathematics
1 answer:
aalyn [17]2 years ago
5 0
Y=mx+b where m=slope which is change in y divided by change in x                 m=(-8-7)/(4-9)=-15/-5=3 so we have                                                                 y=3x+b now we can use either point, I'll use (9,7), to solve for b or the y-intercept...                                                                                                         7=3(9)+b                                                                                                           7=27+b                                                                                                         b=-20so our line is:                                                                                              y=3x-20


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