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kap26 [50]
3 years ago
10

For a quadratic function, which characteristics of its graph is equivalent to the zero of the function? a) y-intercept b) maximu

m point c) minimum point d) x-intercept​

Mathematics
1 answer:
Sonja [21]3 years ago
3 0

Answer:

d) x-intercept

Step-by-step explanation:

The zeros of a function are the values of x that make y = 0.

Thus, they are the points where the graph crosses the x-axis, that is, the x-intercepts.

a) is wrong. the y-intercept is simply the value of y when x = 0.

b) and c) are wrong. A quadratic can have only one maximum or one minimum; it can't have both. And they are not zeros except in the special case of y = ±ax².

The diagram below is the graph of y = x² + 3x - 46. It shows the zeros at x = -23 and x = 20. The minimum and the y-intercept are not zeros of the function.

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Solve the following inequalities 7 x minus 5 / 8 x + 3 &gt;4<br>​
olchik [2.2K]

Answer:

x> \frac{8}{51}

Step-by-step explanation:

7x -  \frac{5}{8} x + 3>4

Bring constants to one side, simplify:

\frac{51}{8} x>4 - 3 \\  \frac{51}{8} x>1 \\ x>1 \div  \frac{51}{8}  \\ x>1 \times  \frac{8}{51}  \\ x> \frac{8}{51}

*Note that the inequality sign only changes when you divide the whole inequality by a negative number.

7 0
3 years ago
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"Rebecca walks 100 feet in a straight line. She then turns 20 degrees to her left and walks another 100 feet, and then turns 20
iragen [17]

Answer:

1,800 ft

Step-by-step explanation:

Rebecca will walk in the pattern of a regular polygon with 'n' sides and internal angles of 160 degrees (180 at a straight line - 20 degrees from each turn).

The equation that describes the internal angle of a regular polygon is:

A = \frac{(n-2)*180}{n}

For A = 160 degrees:

160n=(n-2)*180\\(180-160)n=360\\n=18\ sides

If each side is 100 ft long, the total distance that Rebecca has walked is:

d = 18*100\\d=1,800\ ft

She walked 1,800 ft.

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What is 618,334 rounded to the nearest 10,000
weqwewe [10]
The answer would be 620000
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URGENT!!<br> The difference between the roots of the quadratic equation x2−12x+q=0 is 2. Find q
Tasya [4]

Answer:

-24

Step-by-step explanation:

substitute by 2

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q=-24

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In one day, 18 people each with drew
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Answer:

$1,800 was withdrawn because 18 * 100 = 1,800

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