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Rudik [331]
3 years ago
10

SOMEONE PLEASE HELP ANSWER MY QUESTIONS!!!!!!!!!!!!

Mathematics
1 answer:
Semmy [17]3 years ago
4 0
1)
y=mx+b
where m is the slope

We know the slope is 5 and the line passes through the point (4,3).

m=5 \\
(4,3) \\
x=4 \\ y=3 \\ \\ 
3=5 \times 4 + b \\
3=20 + b \\
b=3-20 \\
b=-17

The equation of the line is:
y=5m-17

Now the second point:
(2,y) \\
x=2 \\
y \\ \\ y=5 \times 2 -17 \\ y=10-17 \\ y=-7

The answer:
The value of y is -7.

2)
The line passes through the origin, or the point (0,0), and has a slope of -32.
The slope is negative so the line goes down from left to right.
It crosses both x and y axes in the point (0,0).
Therefore, it only passes through II and IV quadrant.

You can also find the equation of the line, find one more point and draw it.
y=mx+b \\ \\
m=-32 \\
(0,0) \\
x=0 \\ y=0 \\ \\
0=-32 \times 0 + b \\
b=0 \\ \\
y=-32x

Find the y-coordinate of the point for example (1,y).
(1,y) \\
x=1 \\ y \\ \\
y=-32 \times 1 \\
y=-32

The line passes through the points (0,0) and (1,-32). Now you can draw it (see the attachment).

The answer:
The line passes through quadrants II and IV.

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