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3 years ago

How do you find the vertex & how do you know if a graph opens up or down help please asap

1 answer:

8 0

Standard form of a quadratic f(x) = ax^2 + bx + c
In a quadratic function you find the vertex using the formula x = -b/2a; once you find the x value, substitute it into the equation and solve for y.
To know if a parabola opens up or down you look at the coefficient of the x^2 term. If it is positive, the graph opens up; if it is negative, the graph opens down.

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3x+1=-2x+7 Please solve for X

dlinn [17]

Answer:

x = 6/5 = 1 $\frac{1}{5}$

Step-by-step explanation:

3x + 1 = -2x + 7

+2x - 1 = + 2x - 1

5x = 6

x = 6/5 = 1 $\frac{1}{5}$

Hope this helps:)

7 0

3 years ago

(3⁰-2⁰)×5² - find the value<br> plzzzzz help me

Luda [366]

Answer:

Step-by-step explanation:

Any value to the 0th power will be equal to one so 1-1 is equal to zero. Any number multiplied by 0 is equal to 0.

3 0

3 years ago

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PLS HELP 10 POINTS THANKS FAMMMM~

scoundrel [369]

Hello there,

The first graph show's (0,-3)

The second graph show's (0,-2)

Hope this helps

~HotTwizzlers

4 0

3 years ago

Solve this expression 5x^2-13x-6

torisob [31]

Answer:

x= -2/5 and x= 3

Step-by-step explanation:

Given equation is,

5x^2 - 13x - 6 = 0

Or, 5x^2 - 15x + 2x - 6 = 0 ( using middle term method)

Or, 5x( x- 3) + 2 (x-3) = 0

Or, (x-3) (5x+2) = 0

Now, x will have 2 answers because it's degree is 2. Total number of values depends on the power of variable.

So, x= 3 or, 5x = -2

Or, x= -2/5

So, the answer is x= -2/5 and x= 3.

6 0

3 years ago

ANSWER>> DETERMINE THE RANGE OF THE FUNCTION.

olga2289 [7]

Answer:

Step-by-step explanation:

When the function or the coefficient in this case 1/4x^2 is positive it means it's opening up like a u, meaning all the values will be bigger than the C term or -5 in this case.

6 0

3 years ago

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