Match the parabolas represented by the equations with their vertices. y = x2 + 6x + 8 y = 2x2 + 16x + 28 y = -x2 + 5x + 14 y = -x2 + 7x + 7 y = 2x2 + 7x + 5 y = -2x2 + 8x + 5 vertex equation of parabola (-1.75, -1.125) arrowright (-3, -1) arrowright (-4, -4) arrowright (2.5, 20.25) arrowright

Consider all parabolas:

1.

When x=-3, y=-1, then the point (-3,-1) is vertex of this first parabola.

2.

When x=-4, y=-4, then the point (-4,-4) is vertex of this second parabola.

3.

When x=2.5, y=20.25, then the point (2.5,20.25) is vertex of this third parabola.

4.

When x=3.5, y=19.25, then the point (3.5,19.25) is vertex of this fourth parabola.

5.

When x=-1.75, y=-1.125, then the point (-1.75,-1.125) is vertex of this fifth parabola.

6.

When x=2, y=13, then the point (2,13) is vertex of this sixth parabola.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.