answersLogoWhite

0


Best Answer

Did you mean f(x)=x2-2x+5 ? If so the x value of the vertex is found by using the formula x=-b/2a where a is the coefficient of x^2 and b is the coeffiecient of x x=-(-3)/(2*-2) =3/4 y=-2*(3/4)^2-3*(3/4)+7

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Use your calculator to find the vertex of fx -2x2 -3x 7?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Math & Arithmetic

What is the vertex of -2x2 plus 2x plus 3?

Since this question is in the calculus section, I'm assuming you know how to take the derivative. We know that y = -2x2 + 2x + 3 is a parabola, so it has one vertex, which is a minimum. We can use the first derivative test to find this extreme point.First, take the derivative:y' = -4x + 2Next, set y' equal to zero:0 = -4x + 2Then solve for x:4x = 2x = 2This is the x-coordinate of the vertex. To find the y-coordinate, plug x = 2 back into the original equation:y = -2x2 + 2x + 3y = -8 + 4 + 3y = -1So the vertex is at (2, -1).


What is the vertex of -2x2 plus 8x-12?

Complete the square to find the transformation. -2(x-2)^2-4 the y value is -4. so the vertex is at (2,-4) OR Use the vertex formula: -b/2a a=-2 b=8 x=-8/(2)-2 x=2 Run 2 through the original equation: y=-(2)^2+8(2)-12 y=4


What is 2x2-2 equals -5x-1?

2x2-2 = -5x-1 2x2+5x-2+1 = 0 2x2+5x-1 = 0 Use the quadratic equation formula to find the values of x: x = 0.1861406616 or x = -2.686140662


How can you use a reflection to find a missing vertex in a square?

Given three vertices, the two that are the furthest apart lie at the ends of a diagonal. Reflect the square in this diagonal. The third vertex will be where the missing vertex should be.


How do you find the square root of 6724?

Use a calculator.

Related questions

What is the vertex of -2x2 plus 2x plus 3?

Since this question is in the calculus section, I'm assuming you know how to take the derivative. We know that y = -2x2 + 2x + 3 is a parabola, so it has one vertex, which is a minimum. We can use the first derivative test to find this extreme point.First, take the derivative:y' = -4x + 2Next, set y' equal to zero:0 = -4x + 2Then solve for x:4x = 2x = 2This is the x-coordinate of the vertex. To find the y-coordinate, plug x = 2 back into the original equation:y = -2x2 + 2x + 3y = -8 + 4 + 3y = -1So the vertex is at (2, -1).


How can find the coordinates of vertex by TI-84 Plus?

Here is an example of how to find the vertex of y=(x+1)2 + 2 by graphing. First enter (x+1)2 + 2 into Y1 and graph it (press Y=, enter the equation, and then press GRAPH). You should be able to see the vertex (if not press ZOOM, then ZStandard to reset back to the standard viewing window.) You need to know if the vertex is a minimum or a maximum. In this case, it is a minimum. Press 2ND CALC (above TRACE) and select minimum. (You would select maximum if the vertex were a maximum. The calculator will ask for a left bound. Use the left arrow key to move the flashing start to the left of the vertex and then press ENTER. The calculator will then ask for a right bout. Move the flashing star to the right of the vertex and then press ENTER. The calculator will then ask for a guess. Move the flashing star close to the vertex (between the bounds you set) and pres ENTER. Then calculator will then display the coordinates of the vertex. In this case, it will say that x is -1 and y is 2.


What are the multiples of 15 up to 1000?

15*1 to 15*66. Use your calculator to find them.15*1 to 15*66. Use your calculator to find them.15*1 to 15*66. Use your calculator to find them.15*1 to 15*66. Use your calculator to find them.


What is the vertex of -2x2 plus 8x-12?

Complete the square to find the transformation. -2(x-2)^2-4 the y value is -4. so the vertex is at (2,-4) OR Use the vertex formula: -b/2a a=-2 b=8 x=-8/(2)-2 x=2 Run 2 through the original equation: y=-(2)^2+8(2)-12 y=4


Where can I find Clockwork's calculator on Roblox?

use googe and type clockworks calculator


How do you find the vertex of an equation in vertex form?

look for the interceptions add these and divide it by 2 (that's the x vertex) for the yvertex you just have to fill in the x(vertex) however you can also use the formula -(b/2a)


What is 2x2-2 equals -5x-1?

2x2-2 = -5x-1 2x2+5x-2+1 = 0 2x2+5x-1 = 0 Use the quadratic equation formula to find the values of x: x = 0.1861406616 or x = -2.686140662


How do you find the vertex?

look for the interceptions add these and divide it by 2 (that's the x vertex) for the yvertex you just have to fill in the x(vertex) however you can also use the formula -(b/2a)


How do you find if a number is divisible by 7?

Get out calculator and divide the number by seven. If you can use a computer, use the calculator on your computer.


Where can I find a repayment calculator online?

You can go to irs.gov and use your debt repayment calculator. You can also go to your banking institution and have them use their repayment calculator as well


How can you use a reflection to find a missing vertex in a square?

Given three vertices, the two that are the furthest apart lie at the ends of a diagonal. Reflect the square in this diagonal. The third vertex will be where the missing vertex should be.


What is the answer to 543x65?

The answer is 35,295. PS: You can use a calculator to find out the answer.