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Alenkinab [10]
2 years ago
12

I need help with all

Mathematics
1 answer:
aev [14]2 years ago
4 0

Answer:

for Question 2 its 2/7

Step-by-step explanation:

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Step-by-step explanation:

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julia-pushkina [17]

Answer:

\boxed {\boxed {\sf a= 3, b=7, c=2}}

\boxed {\boxed {\sf Y-intercept = c }}

\boxed {\boxed {\sf Minimum}}

Step-by-step explanation:

a. a, b, c

Quadratic equations in standard form are written as:

f(x)= ax^2+bx+c

The exponents are listed from greatest to least. The quadratic is already in this form, so match up the variables and values in the equation.

f(x)= 3x^2+7x+2

a=3 \\b=7 \\c=2

b. Y-intercept

The y-intercept for a quadratic is c.

You can also substitute 0 in for x, because the y-intercept occurs when the quadratic crosses the y-axis (at x=0).

f(0)= 3(0)^2+7(0)+2

f(0)=3(0)+7(0)+2\\f(0)= 0+0+2\\f(0)=2

We know that c=2, so the y-intercept is c.

c. Maximum/minimum

The entire quadratic is positive, so the quadratic opens up and has a minimum.

8 0
3 years ago
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