Pre-Algebra

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

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  1. 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)

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  2. Omg thank you so much!!

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  3. There answers are for CCA 8th grade Unit 5 Lesson 13 math test.
    1.D
    2.A
    3.B
    4.B
    5.C
    6.D
    7.D
    8.B
    9.B
    10.A
    11.B
    12.D
    13.A
    14.A
    15.D
    16.D
    17.Open ended
    18.Open ended
    19.Open ended

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  4. Do you know the 7th grade test answers

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  5. Hi Lil Helper,

    Thank you so much for trying to help but everyone has different questions and answers.

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  6. Ya we need the 2019 stuff because they switch up the answers every year the also change the numbers in the problems

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  7. As of 2019 the answers to Lesson 13, Unit 5 Unit test are:

    1: 39,49,59
    2: 2048
    3: -5,-3,1,7
    4: Graph one, maintains a constant speed from 10 seconds to 15 seconds
    5: The speed of the car decreases from 4 mph to 2 mph in the first 3 seconds, increases to 6 mph in the next second, and then remains at 6 mph for the last 6 seconds.
    6: 12
    7: E(h)= 10h
    8: Graph 3, 2/3
    9: Liberty Hill; it rises 3/4 foot for every 1 foot of horizontal travel
    10: Graph 3, sorry I can't be more help with explaining the graphs
    11: Graph 1, the line goes from (4,0) to (-4,0.75)
    12: y= 6+3x
    13: y= 4.50x+5.00
    14: y= 1.10(x-1)+1.35
    15: y= 3x+8
    16: y= -x²-5
    17: Essay; it relates to the calories per hour
    18: Essay; Find the slope first, then the y-intercept when x is 0. Write the function as y=slope×x+y-intercept
    19: Essay; The temperature correlates to the season

    I don't know if these answers are right for you but I got 100% with these answers. I'm a connections student

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  8. what about the essay questions??

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  9. 2021

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  10. alright so one of my teachers told me these lessons were made back in 2012 so they don't change the answers or mix up the questions unless a lot of people are getting caught with the same answers, so make sure you either scroll down for confirmation that the person you're about to copy is correct or not

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