Solve the system of equations y=3x+2 y=x2-4x+2
1 answer:
Answer:
(x, y) = (0, 2), (7, 23)
Step-by-step explanation:
I find a graphing calculator to be a quick and easy tool for finding the solution. The attached shows the solutions to be ...
(x, y) ∈ {(0, 2), (7, 23)}
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Equating the expressions for y, we have a quadratic equation. It can be put into standard form and factored.
3x +2 = x^2 -4x +2
0 = x^2 -7x = x(x -7)
Solutions are values of x that make these factors zero, so are ...
x = 0 and x = 7
Corresponding values of y are ...
y = 3·0 +2 = 2 . . . (0, 2) is one solution
y = 3·7 +2 = 23 . . . (7, 23) is the other solution
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Answer:
see the attached for the table and rules
Step-by-step explanation:
a) A graph of the given points shows they lie on the same line, one with a slope of 3 and a y-intercept of 2. Thus the rule is ...
y = 3x +2
see the attachment for table values
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b) The ratios of given points are all the same: y/x = 5/2, so that is the constant of proportionality:
y = (5/2)x
see the attachment for table values
Answer:
$72 earned on monday
Step-by-step explanation:
Delta pays Pete Rose $360 per day in the maintenance department at air port. Pete became I'll Monday and went home after 1/5 of a day
Delta works for only 1/5 of the day
To get the amount earn , multiply the work done by the rate
So $72 earned on monday