the function c(x) 3x-4 determines how many cupcakes need to be purchased for a birthday party, where x is the number of kids at
the party. the party planner uses d(c(x)) to find the amount of money to bing for the cupcakes purchase. the function d(x)=2x+5. solve for how much money to bring when there are 7 kids at the party.
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Answer:
Step-by-step explanation:
We know that , the equation of a line that passes through (a,b) and (c,d) is given by :_
Standard form of equation of line =
Given points = (7, -3) and (4, -8)
Then, the equation of a line that passes through the points . (7, -3) and (4, -8) is given by -
[∵ (-)(-)=(+)]
Or
Hence, the required equation :-