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Genrish500 [490]
2 years ago
15

My daughter is having a hard time trying to figure this problem.

Mathematics
2 answers:
Natalija [7]2 years ago
6 0

Hey there! :-)

First, let's find the slope of the line.

We can do that by using this formula:

Slope=Rise/Run

Where

Rise=how many units we move up

Run=how many units we move left or right.

We move 5 units up and 8 units to the right.

Therefore, the slope is 5/8.

The y-intercept (where the line touches the graph) is -9/8.=

Therefore, the equation of the line is y=5/8x-9/8.

Hope this helps you daughter. Use the comment section to clarify any doubts.

Answered by

~A felicitous teen who helps others with a smile on her face

Good luck.

abruzzese [7]2 years ago
3 0

Answer:

a - y=5/8x - 9/8

Step-by-step explanation:

firstly, work out the gradient between those two coordinates

gradient =  \frac{change \: in \: y}{change \: in \: x}

gradient \:  =  \frac{ - 3 - 2}{ - 3 - 5}  =  \frac{ - 5}{ - 8}  =  \frac{5}{8}

now, use formula y=mx+c where y is the y coordinate, m is the gradient, x is the x coordinate and c is the y intercept

use any of the two coordinates in the graph. I'll use (5,2)

y = mx + c

2 =  \frac{5}{8} (5) + c

2 =  \frac{25}{8}  + c

therefore \: c \: is \:  -  \frac{9}{8} from \: doing \: 2 -  \frac{25}{8}

now we have the gradient and y intercept

so the equation is

y =  \frac{5}{8} x -  \frac{9}{8}

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