Answer:
x = -√2, x2 = √2
Alternative Form:
x1 = -1.41421, x2 = 1.41421
Step-by-step explanation:
-x²+7-5 = 0
-x²+2 = 0
x = -0±√0²-4×(-1)×2 [over] 2×(-1)
x = ±√0+8 [over] -2
x = ±√8 [over] -2
x = ±2√2 [over] -2
x = -±2√2 [over] 2
x = -2√2 [over] 2
x = --2√2 [over] 2
x = -√2
x = √2
Answer:
It add up by 6.
Step-by-step explanation:
6 plus 6 is 12 plus another is 18 and it keeps going.
Answer:
Step-by-step explanation:
A vertical stretch of a function means the output values have changed by a factor of 3 or multiplication by 3. Recall, an exponential function has the basic form
.
If our equation is , then a=1. To stretch it vertically by a factor of 3, we multiply a by 3. So 1(3)=3. The value of a now becomes 3.
The 6 is in the hundredth's place of the number. Since the units of the number are <em>inches</em>, the 6 represents 6 hundredths of an inch.
Blank 1: If y is -5 when x is 2, that means the equation here is y = -2.5x. So, if x is 8, that makes the equation y = -2.5(8), which gives you -20.
Blank 2: If y is 3 when x is 1, the equation will be y = 3x. If x is 2, that will give you y = 3(2), which is 6.
Blank 3: If y is -7 when x is -21, the equation will be x = 3y. If y is 9, that will give you x = 3(9), which is 27.
Blank 4: If y is 5 when x is 4, the equation will be y = 1.25x. If y is 18, that makes the equation 18 = 1.25x, which is 14.4.
I hope this all helped!