MATHEMATICS HIGH SCHOOL

A direct variation function contains the points (–8, –6) and (12, 9). Which equation represents the function?

Answers

Answer 1
Answer:

Answer:

Step-by-step explanation:

The direct variation is defined as

where, k is constant of proportionality.

It is given that a direct variation function contains the points (-8,-6) and (12, 9).

Substitute x=-8 and y=-6 in the above equation.

Divide both sides by -8.

The value of constant of proportionality is . So, the required equation is

At x=12,

It means, the line passing through (12,9). Hence, the equation is correct.

Therefore, the equation of the function is .
Answer 2
Answer:

Answer:

C

Step-by-step explanation:

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Solve the equation. 3/2 + b = 7/4 (stylised in fractions)b= ?

Karina bought a camera with a regular price of $89. It was on sale at a 20% discount. There was a 7% tax on the sale price. How much did Karina spend to buy the camera?

Answers

1) we can calculate the price of this camera with 20% discount.
$89-(20/100)($89)=$89-0.2($89)=$89-$17.8=$71.2

2) now, we apply the tax on the sale price.
$71.2 + (7/100)($71.2)=$71.2+(0.07)($71.2)=$71.2+$4.984=$76.184

Answer: Karina spent to buy the camera $76.184.

Answer:

$17.18

Step-by-step explanation:

you can't have $17.184 it has to be two deci.

only

PLS HELP
Evaluate the expressions:
h(x)=12/x
h(-2)
h(a)

Answers

Answer:

h(-2) = -6, h(a) = 12/a

Step-by-step explanation:

h(-2)

It says that you are supposed to do 12 divided by the number in the parentheses, so you have 12 / -2 = -6.

h(a)

Again, you have to do 12 divided by the number in the parentheses, so you have 12/a.

Rewrite the radical as a rational exponent. the cube root of 2 to the seventh power

Answers

In converting the radical expression of a rational exponent of a rational number. First is to rewrite its form into fractional exponent and giving the answer of 2 to the power 7  over 3 and i hope this could add the knowledge of your learning, have a nice day.

Answer:

2^{(7)/(3)}


Step-by-step explanation:

The formula to change a radical to rational (fractional) exponent is given below:

\sqrt[n]{a^(m)} =a^{(m)/(n)}

It means that the denominator of the fraction (in the rational exponent) goes OUTSIDE the root sign and the numerator goes as power to the number.


Using this, we can write \sqrt[3]{2^(7)}  as  2^{(7)/(3)}

Thus the rational exponent from is given by  2^{(7)/(3)}

41 divided by 100 as a fraction​

Answers

Answer:

41/100 is 41/100 because it is in lowest term and it can't be expressed in lower term than 41/100

This is a construction of

Answers

Answer: stream dynamite

Step-by-step explanation: i dont understand the question

The image of a parabolic lens is traced onto a graph. The function f(x) = (x + 8)(x – 4) represents the image. At which points does the image cross the x-axis?A.(–8, 0) and (4, 0)
B.(8, 0) and (–4, 0)
C.(2, 0) and (–1, 0)
D.(–2, 0) and (1, 0)

Answers

The right answer for the question that is being asked and shown above is that: "B.(8, 0) and (–4, 0).' The image of a parabolic lens is traced onto a graph. The function f(x) = (x + 8)(x – 4) represents the image. At B.(8, 0) and (–4, 0) points does the image cross the x-axis.

Answer:

A

Step-by-step explanation: b is wrong a is right I took the test
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