Answer:
y= 1/2x -5
Step-by-step explanation:
First, you multiply 1/2 with x, and 1/2 with -2, which then makes the equation
y+4=1/2x -1
then, you have to subtract 4 from both sides of the equation and combine -1 and -4, which gets you -5.
Then the equation turns out to be
y=1/2x-5
Answer:
1) 5 2) 6 3) 1.25 or -1.75
Step-by-step explanation:
1. x^2 - 25 = 0
x^2 - 25 = 0
First, add 25 to both sides!
x^2 = 25
Now square root both sides.
x = 5
2. (x-2)^2 = 16
First, square root both sides.
(x-2) = 4
Add 2 on both sides.
(x) = 6
x = 6
3. Quadratic Formula = -b ±
/ 2a
Substitute in:
-6 ±
/ 2(2)
-6±
/ 4
Both forms:
-6 +
/ 4
5 / 4 = 1.25
Negative:
-6 - 1 / 4
-7 / 4 = -1.75
Y=10
explanation:
-4•2= -8
2•4=8
-8+8=0
y=10
Answer:
Step-by-step explanation:
The second one.
Answer:
b. 4
Step-by-step explanation: