Answer:
Step-by-step explanation:
Adam plans to choose a video game from a section of the store where everything is 75% off.
The expression written by him for this situation is d - 0.75d.
Here, the part d represents the sale price before discount and the part 0.75d is the discount amount.
The expression written by Rena is 0.25d.
Here, the part 0.25d is the price after discount. Since 75% is the discount, the rate after disount is 25% and 25% of d is 0.25d.
Answer:
Here we have the function:
y = f(x) = 3^x
Using the values:
x and (x + 1)
We need to find that the y-value increases by a factor of 3.
So we need to prove that:
f(x + 1) = 3*f(x).
Or we can see the quotient:
f(x + 1)/f(x) = 3
Here we can find the values:
f(x + 1) = y = 3^(x + 1)
f(x) = y' = 3^x
If we take the quotient, we get:
Here we can use the properties:
Using these in the quotient equation we get:
Then:
So we found that the y-value increases by a factor of 3 between any two points x₂ and x₁ such that: x₂ - x₁ = 1.
The answer is (A)six and two twelfths
Answer: (1,7) (2,9) (3,11) (4,13)
Step-by-step explanation:
The function is y = 2x + 5. To find the y coordinates we will insert the values 1, 2, 3, and 4 for x.
y = 2(1) + 5
y = 7
So the first coordinate would be (1,7)
y = 2(2) + 5
y = 9
Second coordinate will be (2,9)
y = 2(3) + 5
y = 11
Third coordinate will be (3,11)
y = 2(4) + 5
y = 13
Fourth and final coordinate will be (4,13)
