All categories

3 years ago

A line passes through (8,-1) and is perpendicular to y=2x-9. What is the equation of the line in point-slope form?

Mathematics

2 answers:

frutty [35]3 years ago

5 0

Y=-1/2x+3 i beleive this is what you wanted

lora16 [44]3 years ago

3 0

Y = 2x - 9.....slope here is 2. A perpendicular line will have a negative reciprocal slope. All that means is flip the slope and change the sign. So our perpendicular line will have a slope of -1/2.

y - y1 = m(x - x1)
slope)m) = -1/2
(8,-1)....x1 = 8 and y1 = -1
now we sub...pay attention to ur signs
y - (-1) = -1/2(x - 8)...not done yet
y + 1 = -1/2(x - 8) <== ur perpendicular line

You might be interested in

Why is scientific notation useful and how is scientific notation used in the real world ?

algol [13]

Scientific notation is used to write very large or very small numbers using less digits. Discover examples of scientific notation used in real life and acquire the comprehension of complex concepts such as polynomials and exponents.

4 0

3 years ago

Read 2 more answers

Find the first four terms of the infinite sequence defined explicitly by the following rule.

Nataly_w [17]

The only thing that you should do is to put 1, 2, 3, and 4 instead of the n and then you will get the first four terms!

f(1) = 4(1) - 2 = 2
f(2) = 4(2) - 2 = 6
f(3) = 4(3) - 2 = 10
f(4) = 4(4) - 2 = 14

Have a great day!

8 0

3 years ago

10-x/3 + 12+6/9 when x= 4

Goshia [24]

Answer:

5 i think mabe

Step-by-step explanation:

8 0

3 years ago

If f(x) = 3x + 2 and g(x) = x2 + 1, which expression is equivalent to (F.g) (x)

Misha Larkins [42]

For those who may still need it in the future, the correct answer is actually: D: 3(x^2 + 1) +2

3 0

3 years ago

Martha wrote an example of a quadratic function for a homework assignment. The function she wrote is shown. f(x) = 5x3 + 2x2 + 7

larisa86 [58]

Answer:

The two correct options are:

The first term, 5x³, can be eliminated

The exponent on the first term, 5x³, can be changed to 2 and then combined with the second term, 2x²

Explanation:

The degree of an expression is given based on the highest power in the expression

The given expression is:

5x³ + 2x² + 7x - 3

We can note that the highest power in the given expression is 3 which means that the degree of the expression is 3

A quadratic function is a function of degree 2. This means that the highest degree in the expression (function) must be 2

Accordingly, Martha should get rid of the term with power 3 (5x³) in her equation

This can be done by 2 methods:

1- She simply eliminates the term with the third degree

2- She changes the degree of the term with degree 3 to a lower degree and combines it with any existent like term

Comparing the above with the given options, we can conclude that the two correct options are:

- The first term, 5x³, can be eliminated

- The exponent on the first term, 5x³, can be changed to 2 and then combined with the second term, 2x²

Hope this helps :)

6 0

3 years ago

Read 2 more answers