jameslinimk
17.02.2022 •
Mathematics
What is equivalent expression to
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Ответ:
8+20
Step-by-step explanation:
Distributive Property
4x2=8
4x5=20
8+20
Ответ:
a)
is a solution of the linear equation.
b) The rate of change of the equation is 3.
c) The y-intercept of the equation is -2.
d) Jayne is working in the grocery one day, according to her calculations, renting the lot costs 2 dollars per day and she could earn 3 dollars per hour by selling pastries. How much money does she earn after working 8 hours?
Step-by-step explanation:
a) If
is a solution of the linear equation, then 
. If 
, then the function evaluated at this value is:
Hence,
is a solution of the linear equation.
b) The rate of change of the equation is represented by the slope of the function, which is the constant that multiplies the indepedent variable (
). Hence, the rate of change of the equation is 3.
c) The y-intercept of the equation is the only constant of the equation. Hence, the y-intercept of the equation is -2.
d) A real-world scenario would be the following: Jayne is working in the grocery one day, according to her calculations, renting the lot costs 2 dollars per day and she could earn 3 dollars per hour by selling pastries. How much money does she earn after working 8 hours?