The value of y for the given expression will be -1.
Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication and division.
Solve the system by substitution.
x = 2y + 3
4x-5y = 9
Substituting the value of x in equation no. 2, we have,
4(2y+3) - 5y = 9
8y + 12 - 5y = 9
3y + 12 = 9
3y = 9-12 = -3
The value of y is calculated as,
3y = -3
y = -3/3 = -1
y = -1
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Answer:
Step-by-step explanation:
For a quadratic equation, the vertex form is given by : , where (h, k) is the vertex.
The given quadratic equation:
Subtract 9 from both sides
compare this to , and add both sides
b= 20
[(b/2)²=20/2=10]
So, the vertex form :
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a. How much will the supplies cost?
b. how much change will you receive?
first off, is noteworthy that's the graph of an exponential function, thus the function will be along the lines of g(x) = abˣ , now, what's "a" and "b" values?
well, let's take a peek when x = 0 and x = 1.