Yuson must complete 30 hours of community service. She does 2 hours each day. Which linear equation represents the hours Yuson left after x days? Will mark brainliest if correct

y = 30 - 2x

Step-by-step explanation:

She must complete 30 hours, so we start at 30 hours.

Each day, she has 2 less to do after she does her service hours.

So if x = # of days, then that is -2x

Put that together,

y = 30 - 2x

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f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions