1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anit [1.1K]
3 years ago
14

Write an equation that is perpendicular to y= 1/2x+5 and passes through (4,8)

Mathematics
1 answer:
goblinko [34]3 years ago
4 0

Answer:

y = -2x + 16.

Step-by-step explanation:

The slope of the perpendicular line = -1 / slope of the given line

= -1 / 1/2 = -2.

Using the point slope form of the equation of a straight line:

y - y1 = m (x - x1)

y - 8 = -2(x - 4)

y - 8 = -2x + 8

y = -2x + 16  is the required equation.

You might be interested in
Can you square root a negative number? Why or why not?
kicyunya [14]
Yes you can because you just can
5 0
3 years ago
Read 2 more answers
How can you write the equation for a linear function if you know only two ordered pairs for the function?
Vinvika [58]
1. m
2. One set of ordered pairs
3. b

To show why this is, I’m going to explain how to write the equation for a linear function with two random sets of ordered pairs - (1,0) and (5, 8).

First, find the slope. The formula for slope is m = (y2 - y1)/(x2-x1) where m is the slope and (x1, y1) and (x2, y2) are two sets of points.

This is why #1 is m. M is the letter used when finding slope.

To find m, I plug in the two sets of ordered pairs.

m = (8-0)/(5-1)
m = 8/4
m = 2

An equation for a line (linear function) is written in something called slope-intercept form. It looks like y = mx + b. m is the slope and b is the y-intercept (number y equals when x = 0). If m = 3 and b = 1, the equation would be y = 3x + 1.

Here, you have just solved for m and know it equals 2. Plug that value in for m.

y = 2x + b

To solve for b, plug one ordered pair in for x and y. I will use (1,0)

0 = 2(1) + b
0 = 2 + b
-2 = b

Now that you know b = -2, plug that in for b.
y = 2x - 2. Now you have the equation fo the line.
4 0
3 years ago
Evaluate f ( - 5 ) =
Firdavs [7]

Answer: −5

Step-by-step explanation:

simplify: (−5)

Re-order terms so constants are on the left:

(−5)f(−5)−5

6 0
2 years ago
Currently 1 United States dollar equals 19.25 Mexican pesos. If you exchanged 725 Mexican pesos for US dollars, what amount woul
Irina18 [472]

Answer:

The value of 725 Mexican pesos is equals to 37.66 US dollars

Step-by-step explanation:

Given as :

The value of 1 US dollar equals to 19.25   Mexican pesos

The total amount of Mexican pesos = 725

Now,

∵  19.25  Mexican pesos equals to 1 US dollars

∴    725  Mexican pesos equals to  \frac{725}{19.25} = 37.66 US dollars

Hence The value of 725 Mexican pesos is equals to 37.66 US dollars Answer

5 0
3 years ago
A football field is 300 ft x 160 ft . If A coach ask his players to run from one corner to the opposite corner diagonally, how f
Elan Coil [88]
48000f2t2 pretty sure that is it
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the average ticket price for all tickets sold that day?
    13·1 answer
  • The line segment is rotated 90 degrees counterclockwise about the origin to form C′D′. Which statement describes C′D′
    8·1 answer
  • I need the (rate of change____, so the rock is falling___meters per sec) (the initial value,the initial hight)
    7·1 answer
  • Find the GCF of 40 and 63 using lists of factors
    8·1 answer
  • A prehistoric site was discovered. The site is a nearly perfect circle
    12·1 answer
  • If y equals 14, what does x equal in the following equation ?
    9·1 answer
  • Help only have a hour to do this
    6·2 answers
  • WHICH ANGLE IS CONGRUENT TO AFB
    7·1 answer
  • Consider the quadratic function f(x)= 9x^2+30x+25=0
    5·1 answer
  • Given right triangle def, what is the value of sin(e)? three-fifths three-fourths four-fifths four-thirds
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!