The equation for line 1 is…

y= -2x-5

Step-by-step explanation:

use y=mx+b

m=slope

b=y-intercept

from the graph you can see that the y-intercept is -5, so your b would be -5.

for slope, you can either use "rise over run" or find the slope using two points.

the slope is -2, so your m would be -2.

y=-2x-5

9.55 degrees.

step-by-step explanation:

the given angle is

1 cycle is equal to 2π radians. so 4π will be equal to two cycles.

5.166667π-4π = 1.166667π

hence, this angle goes a little more than negative x axis.

1.166667π-π= 0.166667π

hence, the reference angle is 0.166667π radians.

1 radian = 57.2958 degrees

now, in degrees, this should be equals to 9.55 degrees.

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step-by-step explanation:

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