The function models the cost in dollars, c, of 1 ounce of a certain chemical used in a laboratory. x represents the number of years since 2010. Does the cost of the chemical increase or decrease over time?

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

what graph

step-by-step explanation:

hope this !

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