All categories

2 years ago

Which statement is ture about the graphs of the two lines y=-4/5x+2 and y=-5/4x-1/2

Mathematics

2 answers:

dimaraw [331]2 years ago

6 0

Hey Britanny. I can solve this only for five u sd. Get me at junelukesatgeemaildotcom

Anna71 [15]2 years ago

5 0

I see that the slope of one line is the reciprocal of the slope of the other: -4/5 and -5/4. Unfortunately, these cannot be called perpendicular lines, because the slopes of perp. lines are negative reciprocals.

Neither are the slopes of these two lines equal. Were they equal, the lines would be parallel.

The most probably true statement would be that the two lines intersect. If you want to understand this problem well, graph the 2 lines and determine where they intersect. My result is the point (-5, 5.75).

You might be interested in

Kyle's phone bill is 45 per month how much does he have to pay for half a year of phone service

olya-2409 [2.1K]

For half a year Kyle's phone bill would come up to be $170

8 0

3 years ago

Algebra x = 3, y=2x and z=3y , whats z?

pantera1 [17]

The answer is Z=18. 2x3=6 then 3x6=18

3 0

2 years ago

Find the slope and y-intercept of the line that is parallel to y = -x - 3 and passes through the point (3, -2)

motikmotik

Use point slope formula y-y1=m(x-x1)
You are told that y=-x+3. This equation is of the form y=mx+b. Where m=-1. m is the slope. And you have a point (x1,y1) that is (3,-2). With all of this in mind, you then plug all of these details into the point slope formula y-y1=m(x-x1)

In point slope form, you have the following:

y-(-2)=-1(x-3).

To turn this into slope intercept form, simplify y-(-2) to get y+2 and distribute in the -1 to get:

y+2=-x+3

Subtract 2 from both sides to get

y=-x+1

In slope intercept form, the answer is
y=-x+1 and in point slope form, the answer is y+2=-x+3

Hope this helps!!!

3 0

2 years ago

Using the information in problem 6, tell me in words what the number line of the solution set will look like.

Triss [41]

Answer:

you haven't provided me with anything please provide me with something and I will comment you the answer. mods please stop deleting it :(

Step-by-step explanation:

3 0

3 years ago

A regression analysis between weight (y in pounds) and height (x in inches) resulted in the following least squares line: ŷ = 13

Lunna [17]

Answer:

$y=6x +135$

And for this case the interpretation for the slope would be that for every unit that the height in inches increase then the weight in pounds increase 6 units.

For the intercept of 135 represent the amount initial amount of weight for the scale.

Step-by-step explanation:

We assume that they use least squares in order to create the regression equation

For this case we need to calculate the slope with the following formula:

$m=\frac{S_{xy}}{S_{xx}}$

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

With these we can find the sums:

And the slope would be:

$m=6$

The means for x and y are given by:

$\bar x= \frac{\sum x_i}{n}$

$\bar y= \frac{\sum y_i}{n}$

And we can find the intercept using this:

$b=\bar y -m \bar x$

For this case we know that the line adjusted is:

$y=6x +135$

And for this case the interpretation for the slope would be that for every unit that the height in inches increase then the weight in pounds increase 6 units.

For the intercept of 135 represent the amount initial amount of weight for the scale.

3 0

3 years ago