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vodka [1.7K]
3 years ago
13

Which of the following equations is quadratic?

Mathematics
1 answer:
sergiy2304 [10]3 years ago
3 0
The third option is quadratic

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Help please! I’ll give brainliest too!
DIA [1.3K]

Answer:

y-intercept: -5

Slope: 4

Equation: y = 4x - 5

Step-by-step explanation:

✔️The y-intercept is the value of y when x = 0. From the table of values, it shows that when x = 0, y = -5. Therefore:

y-intercept (b) = -5

✔️using two pairs from the table, (1, -1) and (2, 3):

Slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{3 -(-1)}{2 - 1} = \frac{4}{1} = 4

Slope = 4

✔️To write an equation for the function, substitute m = 4, and b = -5 into y = mx + b.

Thus:

y = 4x +(-5)

y = 4x - 5

7 0
3 years ago
Let G denote the centroid of triangle ABC. If triangle ABG is equilateral with side length 2, then determine the perimeter of tr
zhannawk [14.2K]
We know from Euclidean Geometry and the properties of a centroid that GC=2GM. Now GM=sin60*GA=\sqrt{3}. Hence CM=GC+GM=3*\sqrt{3} /. Now, since GM is normal to AB, we have by the pythagoeran theorem that:
AC^2=AM^2+GM^2=BM^2+GM^2=BC^2
Hence, we calculate from this that AC^2= 28, hence AC=2*\sqrt{7}=BC. Thus, the perimeter of the triangle is 2+4*\sqrt{7}.

3 0
3 years ago
Find the arc length. Round the answer to two decimal places.
bagirrra123 [75]

Answer:

372.233

heart if it helped brain if im cool

7 0
3 years ago
What does 7/18 + 2/27=
victus00 [196]

The answer would be 25/54

4 0
3 years ago
Read 2 more answers
In January, Wally's Widget World had sales of $12,500 and expenses of $10,200. The profit for January was _____.
likoan [24]
Easy, $12, 500 - $10, 200 = ?
8 0
3 years ago
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