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3 years ago

The most important point of a quadratic function is

Mathematics

1 answer:

jeka57 [31]3 years ago

6 0

The Vertex 100%

(Im sorry if this didnt help)

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I need help!!! I’ll mark you brainliest<br> This is timed!!

SVEN [57.7K]

Answer:

c = 28

Step-by-step explanation:

2 * 6 -5 = 7

4 * 7 =28

hope it help

plz fo"ow me

8 0

3 years ago

Find the solution of the system of equations.<br><br> x-y=-3<br>-8x+y=45

mezya [45]

Answer:

x = 17, y = 28

Step-by-step explanation:

1. Isolate for x in "x - y = -3, -8":

x - y+y = -3, -8+y

x = -11 + y

2. Substitute "x = -11 + y" in for x in the second expression:

-11 + y + y = 45

3. Simplify:

-11 + 2y = 45

4. Isolate y:

-11+11 +2y = 45+11

2y = 56

$\frac{2y}{2} = \frac{56}{2}$

y = 28

5. Substitute the new y-value into the first equation:

x = -11 + 28

x = 17

hope this helps!

5 0

2 years ago

Which table will have the greatest value of y when x = 7?

kow [346]

Answer:

(a) (x, y) = (7, 147)

Step-by-step explanation:

Table A represents a quadratic function: y = 3x², so for x=7, y = 3·7² = 147.

Table B represents a linear function: y = 12x +2, so for x=7, y = 86.

Table C represents an exponential function: y = 2^x, so for x=7, y = 128.

Table D represents a linear function: y = 10x +2, so for x=7, y = 72.

The greatest value of y for x=7 will be found in Table A.

_____

Table a's values go down and up, with symmetry about x=0. This suggests a quadratic function. A plain y=x² function will have the value 1 at x=1. This one has the value 3, so looks like y = 3x². Checking values for x=2 and x=3 confirms this.

Table b's values go consistently up, with a difference of 12 each time. The value for x=0 is 2, so we know this linear function has equation y=12x+2.

Table c's values double from one value of x to the next, so the function is exponential with a base of 2. The multiplier is 1, the value for x=0, so the equation is y = 1·2^x.

Table d is similar to table b, except the common difference is 10 instead of 12. So, the slope in slope-intercept form is 10 instead of 12: y = 10x + 2.

7 0

3 years ago

Translate the word phrase into a math expression. nine more than five times a number A.9 > 5n B.9 – 5n C.5n – 9 D.5n + 9

STatiana [176]

A number - n
five times the number - 5n
nine more than five times the number - 5n+9

The answer is D.

7 0

4 years ago

Read 2 more answers

Helpppp plzzz...plz give steps

uysha [10]

Answer:

Volume of hemisphere =