What is the equation of this line in slope-intercept form? a. y = 4x + 1 b. y=−14x+1 c. y=4x−1 d. y=−4x+1

From given picture we see that line passes through two points (-1,5) and (1,-3).

We have to find equation of line in slope intercept form y=mx+b. So we can begin with finding slope (m) first using formula

Now plug the value of slope m=-4 and any one point say (1,-3) into point slope formula

, we get:

y--3=-4(x-1)

y+3=-4x+4

y=-4x+4-3

y=-4x+1

Hence final answer is D. y=-4x+1.

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.

the first option i believe

step-by-step explanation: