What is the Y Y value at x = 2x = 2?

Tap for more steps… Divide 2 2 by 2 2. The final answer is 1 1. The y y value at x = 2 x = 2 is 1 1. Create a table of the x x and y y values.

What is the value of Var(2X-Y)?

Var(2x-y) = V(2x) + V(y) – 2cov(2x,y) [math]implies math]var(2x-y) = 4V(x) + V(y) – 4cov(x,y) Now, by putting the given values , we get:

What is the predicted value of Y for x = 7?

Residual is 2 . Explanation: As the regression line is y = −2x+17 , for x = 7 we have predicted value of y is −2×7+ 17 = 3 How do you find the x and y intercept given \\displaystyle {2} {x}+ {5} {y}= {3}?

How do you evaluate X and Y in Algebra calculator?

Algebra Calculator can also evaluate expressions that contain variables x and y. To evaluate an expression containing x and y, enter the expression you want to evaluate, followed by the @ sign and an ordered pair containing your x-value and y-value. Here is an example evaluating the expression xy at the point (3,4): xy @ (3,4) .

The final answer is − 3 – 3. The y y value at x = 2 x = 2 is − 3 – 3. Choose 3 3 to substitute in for x x to find the ordered pair.

How do you solve 5x – 7 = 0?

Tap for more steps… Rewrite the equation as 5 x − 7 = 0 5 x – 7 = 0. Add 7 7 to both sides of the equation. Divide each term by 5 5 and simplify. Tap for more steps… Divide each term in 5 x = 7 5 x = 7 by 5 5.

How do you simplify 5x + 2 = 0?

Rewrite the equation as 5 x + 2 = 0 5 x + 2 = 0. Subtract 2 2 from both sides of the equation. Divide each term by 5 5 and simplify. Tap for more steps… Divide each term in 5 x = − 2 5 x = – 2 by 5 5. Cancel the common factor of 5 5.

How do you make 2x and 3x equal?

To make 3x and 2x equal, multiply all terms on each side of the first equation by 2 and all terms on each side of the second by 3. Simplify. Subtract 6x+3y=42 from 6x+4y=44 by subtracting like terms on each side of the equal sign.

The y y value at x = 2 x = 2 is − 3 – 3. Replace the variable x x with 1 1 in the expression. Simplify the result. Tap for more steps…

How do you solve X+Y=8 and y=x+2 and 3XY=18?

For system of equations x+y=8 and y=x+2, check (correct) solution x=3, y=5: x+y=8 and y=x+2 @ x=3, y=5 For 3xy=18, check (correct) solution x=2, y=3: 3xy=18 @ x=2, y=3

What is the integer solution to x + y = 2?

As an additional note, a simple, real, integer solution ( x = 2, y = 2) would be obtained if the given problem is expressed either as: x + y = 4 and ( x x + y y) 2 = 64, or as: x + y = 4 and x x + y y = 64 = 8. This will be the integer solution for all problems of the form:

How do you solve 2x+3=15 with the algebra calculator?

Learn how to use the Algebra Calculator to check your answers to algebra problems. Solve 2x+3=15. First go to the Algebra Calculator main page. First type the equation 2x+3=15. Then type the @ symbol. Then type x=6. Try entering 2x+3=15 @ x=6 into the text box.