The standard form for this parabola is x = a(y-k)^2 + h because this is a sideways-opening parabola. Our h and k values for the vertex are (-4, -1). And it goes through (2,0). We just need to solve for the a. Filling in accordingly, 2 = a(0+1)^2-4 so 2 = a - 4. a = 6. A above.

correct answer is 6!

8 0

2 years ago

Find the slope . (5,8) and (-4,6) . can someone help plz

nadya68 [22]

2/9 is the answer

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

John has a job selling souvenirs on a football stadium. He earns $10 per game plus $0.25 dollars for each souvenir he sells. How

Ahat [919]

Answer:

He needs to sell 100 souvenirs

Step-by-step explanation:

We want to know the number of souveniers John has to sell

Let the number of souveniers he sold at the game be s

At a rate of $0.25 per souvenier, the amount earned on souveniers for s souveniers will be:

$0.25 \times s =0.25s$

Now, if we added this to the amount he earns per game, we will have the total $35 earned for working at one game.

Thus, mathematically:

$0.25s + 10 = 35 \\ 0.25s = 35 - 10 \\ 0.25s = 25 \\ s = \frac{25}{0.25} \\ s = 100$

7 0

2 years ago

Find the value of x if y=50. y=5x - 15

ExtremeBDS [4]

Answer:

x = 13

Step-by-step explanation:

y=50

50 = 5x - 15

50 + 15 = 5x

65 = 5x

65/5 = 5x/5

13 = x

3 0

2 years ago