Answer:
6.384 rounded to one decimal place is 6.4
Step-by-step explanation:
Domain is possible x values
Range is possible y values
They'll be in interval form
Domain
You find the point furthest to to the left and the x-coordinate is your minimum. Then find maximum (furthest to the right)
Do the same for range except it is up and down
Answer:
x = -2 y = 3
Step-by-step explanation:
Equation 1: y = -x + 1
Equation 2: 23 = 5y -4x
Take and plug in what y equals (from equation 1) into equation 2
23 = 5(-x+1) - 4x
23 = -5x + 5 - 4x
23 = -9x + 5
18 = -9x
x = -2
Then plug the -2 in to the first equation for x
y = -(-2) + 1
y = 2 + 1
y = 3
The answers are below:
{X = 6, Y = -3}
Note: The first image is how to solve for Y. The second image is how to solve for X.
Answer:
C. (3, -2)
Step-by-step explanation:
x + y = 1 ➡ x = 1 - y we can use this information in the first equation to find the value of y
3x - 5y = 19 replace x with 1 - y
3 ×(1-y) - 5y = 19 ➡ 3 - 3y - 5y = 19 add like terms
-8y = 16
y = -2 if y is 2 then x is
x + y = 1 ➡ x +(-2) = 1 and x = 3
