2 years ago

A student draws two parabolas on graph paper. Both parabolas cross the x-axis at (-4.0) and (6, 0). The y-intercept of the first

Mathematics

2 answers:

solmaris [256]2 years ago

6 0

Answer:-0.5

........................

LuckyWell [14K]2 years ago

3 0

The answer is 0.5

The other is incorrect, so don't put that answer in. Hope this helps!

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Write an equation of the parabola in intercept form with x-intercepts of 12 and -6; and an axis of symmetry of (14, 4).

xenn [34]

Intercept form is: y = a(x - p)(x - q)

It is given that: p = 14, q = -6, x = 14, y = 4

4 = a(14 - 12)(14 - (-6))

4 = a(2)(20)

4 = 40a

$\frac{4}{40} = \frac{40a}{40}$

$\frac{1}{10} = a$

Answer: y = $\frac{1}{10}$ (x - 14)(x + 6)

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2 years ago

Write eachfraction units simplest form.<br><br> 18/4= ____. 24/32=_______

disa [49]

Answer:18/4= 9/2

24/32= 3/4

Step-by-step explanation:

for 18/4 divide both numbers by 2

= 9/2

for 24/32 divide both numbers by 8

=3/4

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3 years ago

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Describe the relationship between two variables when the correlation coefficient r is one of the following.(a) near –1weak or no

AlexFokin [52]

Step-by-step explanation:

I don't know this math yet

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2 years ago

Izara built a fence for her horses. The fence was 210 feet long. She put a fence post in the ground at the start of the fence an

Dmitry_Shevchenko [17]

B. $518.50 is the answer. Quizzes and Quizlet confirmed.

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3 years ago

Given that the expression x³_ ax² + bx+c leaves the same remainder when divided by x + 1 or x-2, find 'a' in terms of 'b'.

goblinko [34]

Answer:

Hi,

a=b+3

Step-by-step explanation:

$\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=-1&&-1&a+1&-a-b-1\\---&---&---&---&---\\&1&-a-1&a+b+1&c-a-b-1\\\end{array}$

$\begin{array}{c||c|c|c|c}&x^3&x^2&x&1\\---&---&---&---&---\\&1&-a&b&c\\x=2&&2&4-2a&2b+8-4a\\---&---&---&---&---\\&1&2-a&b+4-2a&c+2b+8-4a\\\end{array}$

Thus:

c+2b+8-4a=c-a-b-1

3b-3a=-9

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2 years ago