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jarptica [38.1K]
3 years ago
15

Fill in the table! Please help! My teacher taught this the day I was absent!

Mathematics
2 answers:
Goshia [24]3 years ago
8 0
The parabola is going downwards.

The equation for the axis of symmetry is x = -1.

The vertex is at -1,9

The x-intercepts are at -4, 2
True [87]3 years ago
6 0
The parabola is the name of the type of function curve judging by how it looks the curve opens downward to negative infinty.

The axis of symmetry is the point at which the parabola is equal on each side.
This point is at x=-1.

The vertex is the highest point of the parabola this is at the coordinates (-1,9)

The x intercepts are the places at which the parabola crosses the x axis
these points are at x = 2,-4

The y intercepts are the places at which the parabola crosses the y axis.
This points is at y = 8.
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Graph the system of inequalities. Then use your graph to identify the point that represents a solution to the system. x > 4 y
8_murik_8 [283]
The first thing you should do in that case is to graph both lines.
 Once graphed you must see which region of the Cartesian plane they meet their respective inequalities.
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 answer
<span> (5, –2)</span>

7 0
3 years ago
Becca and Kimberly are running at a constant speed in a marathon. Becca runs at 4.5 miles per hour. Kimberly’s progress is shown
Georgia [21]

Answer:

Part A: Kimberly

Part B:

Becca = 22.5 miles, Kimberly = 25 miles

Step-by-step explanation:

Part A:

Given that Becca runs at a constant speed of 4.5 miles per hour, use the table to find the constant speed that Kimberly runs, and compare who runs faster.

Let x = time

y = distance

k = speed = y/x

Equation for each person can be written as: y = kx

Therefore:

✔️Equation for Becca if k = 4.5

y = 4.5x

✔️Find k (speed) of Kimberly using (2, 10):

Speed (k) = y/x

k = 10/2

k = 5 miles per hour

Equation for Kimberly would be:

y = 5x

Comparing their speed, Kimberly runs faster because she covers more miles per hour than Becca does.

Part B:

For Becca, substitute x = 5 into Becca's equation, y = 4.5x

Thus:

y = 4.5*5 = 22.5 miles

For Kimberly, substitute x = 5 into Kimberly's equation, y = 5x

Thus:

y = 5*5 = 25 miles

5 0
2 years ago
The following system has a solution of x=-5, y=9, z=11.
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3 years ago
Insert grouping symbols <br><br> 2 times 9+7
a_sh-v [17]

Answer:

2 times (9+7)

6 0
3 years ago
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kakasveta [241]
I’m not exactly sure what you mean by “write it in math,” however I can tell you what I think.
4y=x
(It says that x is 4 times the value of y which means that y times 4 is x.)
3 0
3 years ago
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