1. Given the function rule f(x) = x² – 3x + 2, what is the output of f(–2)?
2. Suppose you earn $12 each time you mow the lawn. Write the function describes the relationship between your total earnings E and the number of times you mow the lawn, m?
3. Mia charges $2.25 per hour when she babysits, plus $5.00 for transportation expenses. Write a function rule represents the amount y Mia charges to babysit for x hours?
4. The sale price of shrimp at a local grocery store is $1.15 for the first ounce and $0.95 for each additional ounce. Which function rule shows how the cost of shrimp, y, depends on the number of ounces, x?
1. 24
2. E=Mx
3. y=5+2.25x
4. y=x+.95
1. how did you get 24 ?
f(x) = x^2 - 3x + 2
f(-2) = (-2)^2 - 3(-2) + 2
= 4 + 6 + 2 = 12
2. E = 12m
3. correct
4. y = 1.15 + .95(x-1)
Hi Lil Helper,
Thank you so much for trying to help but everyone has different questions and answers.
2021
Ya we need the 2019 stuff because they switch up the answers every year the also change the numbers in the problems
1.D (33,42,51)
2.C (768 bulbs)
3.D (-5,-3,1,7)
4.A (Constant , Up , Constant)
5.D ( The speed decreases 4 to 2 in the 1st 3 secs ,Increases 5 in the next 5 secs, and the remain at 5 for the last 2 secs.)
6.D (12)
7.D (E(m)=12m)
8.C (postive 2/3)
9.B (Dixie Hill , rises 2 feet for every 1 foot)
10.A ( Line goes through negative 2 and 4)
11.C ( Line goes through postive 4 and 2 for (y) and closer to 2 for (x))
12.A ( y = 4 + 5x)
13.A (y = 2.25x + 5.00)
14.A (y = 1.10(x - 1) + 1.35)
15.C (y = 3x - 8)
16.C (y = x^2 - 5)
17.So if the person burns 420 in an hour = 420h. The weight and speed have nothing to do with the calories burned. So f = 420h. F=function, H= hours.
18.I want to say the function rule for this graph is y = -1/2x + 2. X increases by 2 so its 2, Y decreases by 1 so it -1 . Which is going to = -1/2 .
19.The 4 seasons are summer, spring, fall, and winter, im thinking the hotter it is the higher it is. Summer is the hottest so summer would be graphed C because it's the highest. The second highest is b so it would be spring, A would be fall, and D would be winter.