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3 years ago

Does anybody know when your doing algebra 1 if you do addition first or if you do subtraction first

Mathematics

2 answers:

Alex Ar [27]3 years ago

8 0

Answer:

addition first

Step-by-step explanation:

PMDAS 1

P:Parenthesis 2

M:Multiply 3

D:Divide 4

A:Add 5

S:Subtract 6

Adding is before subraction

omeli [17]3 years ago

5 0

Answer:

You do whichever one is first

Step-by-step explanation:

Parenthesis

Exponents

Multiplication/Division

Addition/Subtract

Hope it helps

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2 years ago

The graph of which function will have a maximum and a y-intercept of 4? f(x) = 4x2 + 6x – 1 f(x) = –4x2 + 8x + 5 f(x) = –x2 + 2x

V125BC [204]

Answer:

Option C (f(x) = $-x^2 + 2x + 4$ )

Step-by-step explanation:

In this question, the first step is to write the general form of the quadratic equation, which is f(x) = $ax^2 + bx + c$ , where a, b, and c are the arbitrary constants. There are certain characteristics of the values of a, b, and c which determine the nature of the function. If a is a positive coefficient (i.e. if a>0), then the quadratic function is a minimizing function. On the other hand, a is negative (i.e. if a<0), then the quadratic function is a maximizing function. Since the latter condition is required, therefore, the first option (f(x) = $4x^2 + 6x - 1$ ) and the last option (f(x) = $x^2 + 4x - 4$ ) are incorrect. The features of the values of b are irrelevant in this question, so that will not be discussed here. The value of c is actually the y-intercept of the quadratic equation. Since the y-intercept is 4, the correct choice for this question will be Option C (f(x) = $-x^2 + 2x + 4$ ). In short, Option C fulfills both the criteria of the function which has a maximum and a y-intercept of 4!!!