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4 years ago

What is the slope of a line that passes through (–8,–16) and (18,5)?

Mathematics

1 answer:

kap26 [50]4 years ago

8 0

slope=(-16-5)/(-8-18)=21/26

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Find the slope and y-intercept of the line.

balandron [24]

Answer:

Step-by-step explanation:

Slope = (y2 - y1) / (x2 - x1)

= (2 - 0) / (0 - (-3)

= 2/3

Y intercept 2

4 0

3 years ago

What is an equation of the line that passes through the point (1, -2) and is parallel

Oliga [24]

Answer:

y = -6x + 4

Step-by-step explanation:

2 parallel lines should have equal slope

Rewrite 6x + y = 92

It is now y = -6x + 92. Slope is -6

So the new equation should also have -6 as the slope.

y = -6x + b

Substitute (1,-2) into this equation

-2 = -6(1) + b

-2 = -6 + b

4 = b

So equation is y = -6x + 4

6 0

3 years ago

Evelyn has $524.96 in her checking account. She must maintain a $500 balance to avoid a fee. She wrote a check for $32.50 today.

postnew [5]

Answer:

You answer would be $7.54

Step-by-step explanation:

You need to subtract 32.50 from 524.96. That would be 492.46. Then subtract 492.46 from 500. Hope that helps!!

4 0

3 years ago

Write the quadratic equation in factored form. Be sure to write the entire equation.

Ulleksa [173]

X^2-5x-24=0
I don't know you use which way, i just tell you the easy way i think.
x^2-5x-24=0
24=2x2x2x3
So we can have those two numbers: 3, -8
The answer is (x+3)(x-8)

5 0

3 years ago

Jessica, Miguel, and Dan sent a total of 75 text messages over their cell phones during the weekend. Dan sent 3 times as many me

SCORPION-xisa [38]

Answer:

number of messages sent by Jessica = 17

Number of messages sent by Miguel = 7

Number of messages sent by Dan = 51

Step-by-step explanation:

Let number of messages sent by Jessica = $x$

As per given statement,

Number of messages sent by Dan = $3 \imes x$ and

Number of messages sent by Jessica are 10 more than that of Miguel.

So, Number of messages sent by Miguel are 10 lesser than that of Jessica.

Number of messages sent by Miguel = $x-10$

It is also given that,

Total number of messages sent = 75

Adding the number of messages sent by each one of them and putting them equal to 75:

$x+3x+x-10=75\\\Rightarrow 5x-10=75\\\Rightarrow 5x=85\\\Rightarrow x=17$

So, number of messages sent by Jessica, $x$ = 17

Number of messages sent by Miguel, $x-10$ = 7

Number of messages sent by Dan, $3x$ = 3 $\times$ 17 = 51

8 0

3 years ago