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3 years ago

Find the slope and y-intercept of the line in each graph. PLEASE HELP ASAP

Mathematics

1 answer:

Assoli18 [71]3 years ago

6 0

Answer:

slope m = -2, y-intercept b = 1

Step-by-step explanation:

The slope is the change in y over the change in x.

Equation for slope: y2-y1/x2-x1=m

Since they already gave us the two points we just have to decide which one is our y2,y1 and out x2,x1 (which one you chose does not matter). And plug the numbers into the equation and get: -3-1/2-0=m, in this case, m=-4/2 and simplify it into -2. Now we have our slope.

The y-intercept is where the line crosses over the y-axis, and in our case, it is given to us in the (0,1) so our slope is 1.

Hope this helps you

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What times what gives me -48 but adds to be -32?

oee [108]

Answer:

a couple of irrational numbers: -16±4√19, approximately {1.436, -33.436}

Step-by-step explanation:

Your question can be cast as the quadratic equation

x² +32x -48 = 0

The solutions can be found using the quadratic formula:

x = (-32 ±√(32² -4(1)(-48)))/(2(1)) = -16±√304 = -16±4√19

_____

<em>Comment on the equation we used</em>

We notice that when p and q are roots, the equation can be written ...

(x -p)(x -q) = 0 = x² -(p+q)x +pq

You want p+q = -32, pq = -48, so the equation is ...

x² -(-32)x +(-48) = 0

x² +32x -48 = 0 . . . . . . with parentheses eliminated

5 0

3 years ago

A line passes through the points (-4,n) and (2,4n) and has the slope of 6. What’s the value of n?

Wittaler [7]

Not sure about this one sorry bud

4 0

3 years ago

Find the equation of the line using the point-slope formula. Write the final equation using the slope-intercept form. the x-inte

wariber [46]

Step-by-step explanation:

Given x intercept is 1, So (x,y) is (1,0)

When x intercept is 1 then y value is 0

Another point on the line is (-2,3)

Two points are (1,0) and (-2,3)

Find out slope using the two given points

$slope m=\frac{y_{2}-y_1}{x_2-x_1} =\frac{3-0}{-2-1} =-1\\m=-1$

Use point slope formula

m=-1 and point(1,0)

$y-y_{1}=m(x-x_{1})\\y-0=-1(x-1)\\y=-1x+1$

Point slope equation is

$y-0=-1(x-1)$

Equation of the line in slope intercept form is

$y=-1x+1$

7 0

3 years ago

2x+5(x+1) = -8;<br><br> Can someone help me solve this problem step by step please?

mariarad [96]

Answer:

-13/7

Step-by-step explanation:

2x+5(x+1)=-8

2x+5x+5=-8

7x+5=-8

7x=-8-5

7x=-13

7x/7=-13/7

x=-13/7

4 0

3 years ago

Read 2 more answers

What is the equation of the line, in slope-intercept form, that passes through the point (6,−1) and is perpendicular to the line

finlep [7]

did you mean to put. y= -1/2x+2 for choice b? because that's what I got as a solution

6 0

3 years ago