All categories

2 years ago

Write the equation of the line, with the given properties, in slope-intercept form. Slope=- 7, through (- 4,8)

Mathematics

1 answer:

san4es73 [151]2 years ago

6 0

y = - 7x - 20

the equation of a line in ' slope- intercept form ' is

y = mx + c → (m is the slope and c the y- intercept)

here m = - 7 ⇒ y = - 7x + c

to find c substitute ( - 4 , 8 ) into the equation

8 = 28 + c ⇒ c = 8 - 28 = - 20

y = - 7x - 20 → equation in slope- intercept form

You might be interested in

Determine the equation of the linear graph that passes through (-2,3) and (4,6). State your answer in the

Lena [83]

The linear equation is y = 4 + 0.5x

<h3>How to determine the equation?</h3>

The points are given as: (-2,3) and (4,6)

The equation is then calculated using:

$y = \frac{y_2 -y_1}{x_2 -x_1} *(x - x_1) + y_1$

Substitute the known values

$y = \frac{6-3}{4+2} *(x+2) + 3$

Evaluate

y = 0.5 *(x+2) + 3

Expand

y = 0.5x + 1 + 3

Evaluate the sum

y = 0.5x + 4

Rewrite as:

y = 4 + 0.5x

Hence, the equation is y = 4 + 0.5x

Read more about linear equations at:

brainly.com/question/14323743

#SPJ1

3 0

1 year ago

H=-16t^2+46t+6 after how many seconds will the ball hit the ground?

ANEK [815]

Ball hit the ground is when the function equals zero
0=-16t^2+46t+6
we can't factor so use quadraticformula

for
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^2-4ac} }{2a}$
x= $\frac{-46+/- \sqrt{46^2-4(-16)(6)} }{2(-16)}$
x= $\frac{-46+/- \sqrt{2116+384} }{-32}$
x= $\frac{-46+/- \sqrt{2500} }{-32}$
x= $\frac{-46+/- 50 }{-32}$
x= $\frac{-46+ 50 }{-32}$ or $\frac{-46- 50 }{-32}$
x= $\frac{4}{-32}$ or x= $\frac{-96}{-32}$
x=-1/6 or x=3

we cannot have negative time because time starts at 0
disregard -1/6 as a possible answer

answer is after 3 seconds

4 0

2 years ago

Please answer both ASAP (middle school) (probability)

lana66690 [7]

Answer:

the first one is 18/32 and the second one is 125 games or 120

Step-by-step explanation:

for the first add all the numbers to get your denominator then add the probability of green aND YELLOW.

for the second you just divide 200 by eight to get 25 then times 25 by 5 to get your anwser

hope this helped :)

7 0

2 years ago

Help please and show work

Nikolay [14]

Answer:

Step-by-step explanation:the half of 32 is 16 so 16 times 2 =-=

3 0

3 years ago

Help me I really need help

natita [175]

Answer:

i think it would be the first one

Step-by-step explanation:

not a wild guess but i am definetly not sure

8 0

2 years ago

Read 2 more answers

Write the equation of the​ line, with the given​ properties, in​ slope-intercept form. Slope=- 7​, through ​(- 4​,8​)

Write the equation of the line, with the given properties, in slope-intercept form. Slope=- 7, through (- 4,8)