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2 years ago

Please I need help!!!!

Mathematics

2 answers:

Sladkaya [172]2 years ago

8 0

1st

Vertex

we have

f(x)=x²-18x+88

let

y=x²-18x+88

comparing above equation with ax²+bx+c

we get

a=1

b=-18

c=88

now

vertex(x,y)=(-b/2a,f(-b/2a))

x=(18/2×1)=9

y=f(9)=9²-18×9+88=7

VERTEX(X,Y)=(9,7)

irinina [24]2 years ago

4 0

Answer:

(9-7)

Step-by-step explanation:

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Karolina [17]

Answer:

$y=14.5x+5$

Step-by-step explanation:

Let

x ----> the number of tickets

y ----> the price of tickets

we have the ordered pairs

(4,63) and (6,92)

step 1

<em>Find the slope of the linear equation</em>

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

substitute the values

$m=\frac{92-63}{6-4}$

$m=\frac{29}{2}=\$14.5\ per\ ticket$

step 2

Find the y-intercept or initial value of the linear equation

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the slope b is the y-intercept

we have

$m=14.5$

$point\ (4,63)$

substitute

$63=14.5(4)+b$

solve for b

$b=63-14.5(4)$

$b=\$5$

In this context the y-intercept is a one charge fee for the ticket service

The equation is equal to

$y=14.5x+5$

4 0

2 years ago

Given f(x)=x^2-4x+5, what's the value when f(2)

Reil [10]

If you were to replace the x's with 2, your equation would turn into:

(2)^2-4(2)+5

From there, you'd just solve.

4-8+5=1

Your answer would be 1.

7 0

2 years ago

Sophia has been trying to budget her money. She just opened a bank account and deposited

Karolina [17]

Answer:

400 - 120 - 220 -175 -60 +50 = -125

Step-by-step explanation:

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2 years ago

A circle has a radius r=3 and a center at (3,-5). what is the general form of the circle

Aleks [24]

Answer:

yes it would be so do that

Step-by-step explanation:

5 0

3 years ago

Which ratio correctly compares 150 mm to 60 cm?

BartSMP [9]

Convert 150mm into cm = 15cm
So 15cm to 60cm
Divide by 15
B. 1 to 4

6 0

2 years ago