Answer:
B. y=3(x-1)2 + 3
Step-by-step explanation:
Given that
vertex of the parabola is at the point (1,3)
let's verify, if the option B is the correct equation of the parabola.
comparing to standard equationof parabola (standard quadratic equation), we get
to find the vertex we use formula for x- coordinate as
to find y put x=1 in the Eq1, we get
vertex =(x,y) = (1, 3)
thus vertex of the parabola from the equation y=3(x-1)2 + 3 is (1,3), thus verified
Answer:
The estimate of the product is about 35 answer C
Step-by-step explanation:
- We use rounding to estimate the product of two fractions
- The mixed number has whole number and fraction
- To round the mixed number we look to the fraction
- If the numerator is half or greater than half the denominator, then we
add the whole number by 1 and cancel the fraction
- If the numerator is less than half the denominator, then we keep the
whole number as it and cancel the fraction
- Ex: If the mixed number is , 3 is more than
half 4 then we will add 2 by 1 and cancel the fraction part, the
mixed number after rounding is 3
- Ex: If the mixed number is , 1 is less than
half 4 then we will keep 5 as it and cancel the fraction part, the
mixed number after rounding is 5
* Lets solve the problem
∵ In the part 3 is more than half 4
∴ The rounding value of is 5
∵ In the part 2 is less than half 17
∴ The rounding value of is 7
∴
* <em>The estimate of the product is about 35</em>
