Answer:
. .....
Step-by-step explanation:
Answer: C. y = 0.75x - 3
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
Slope = -9 - (- 3) / -8 - 0 = -9 + 3/ -8 - 0 = -6/-8 = 0.75
Y-intercept = -3
y = 0.75x + (- 3)
y = 0.75x - 3
Hope that helped!
Answer:
B; (2,-4)
Step-by-step explanation:
The general equation of a straight line is;
y = mx + b
where m is the slope and b is the y-intercept
So from the question, when we look at the given equation, its slope is -1/2
mathematically, when two lines are perpendicular, the product of their slopes is -1
thus;
m1 * m2 = -1
m2 * -1/2 = -1
-m2 = -2
m2 = 2
The general equation form is;
y-y1 = m(x-x1)
where (x1,y1) = (4,0)
y-0 = 2(x-4)
y = 2x - 8
So, now we look at the point that will work for this equation
For the line that will work, if we substitute its x-value, we get the y-value
Let us take a look at option B
y = 2(2) -8 = 4-8 = -4
we can see that (2,-4) works
The distance between you and your friend rounded to the nearest tenth is 10.7 feet.
<h3>How to find the length of a triangle using cosine rule?</h3>
The distance between you and your friend can be found using cosine rule.
Therefore,
c² =a² + b² - 2ab cos C
Therefore,
let
x = distance between him and his friend
x² = 7² + 6² - 2 × 7 × 6 cos 110°
x² = 49 + 36 - 84 × -0.34202014332
x² = 49 + 36 + 28.7296920394
x² = 113.729692039
x = √113.729692039
x = 10.6644124076
x = 10.7 ft
learn more on triangle here: brainly.com/question/2838446
