Answer:
A parallel y = 3x-1
B perpendicular y = -1/3x+9
Step-by-step explanation:
y = 3x-4 is written in slope intercept form (y=mx+b) so the slope is 3.
A. If the lines are parallel they have the same slope
m parallel is 3
Using point slope form
y-y1 = m(x-x1)
y-8 = 3(x-3)
Distribute
y-8 = 3x-9
Add 8 to each side
y-8+8 = 3x-9+8
y = 3x-1
This is slope intercept form
B If we want perpendicular lines, the slope is the negative reciprocal
m perpendicular is -(1/3) = -1/3
Using point slope form
y-y1 = m(x-x1)
y-8 = -1/3(x-3)
Distribute
y-8 = -1/3x+1
Add 8 to each side
y-8+8 = -1/3x+1+8
y = -1/3x+9
This is slope intercept form
Answer:
A T-shirt shop charges $15 for an adult shirt and $12 for a youth shirt. The total charge for a shirt order was $489.
We can notice that : Line Passes through the Points (1 , 2) and (4 , -4)
Let us find the slope of the line in order to write the Equation of the Line.
Slope of a Line Passing through two points (x₁ , y₁) and (x₂ , y₂) is given by :
Points are (1 , 2) and (4 , -4)
here x₁ = 1 and x₂ = 4 and y₁ = 2 and y₂ = -4
Equation of the Line passing through (1 , 2) and having slope -2 is :
⇒ y - 2 = -2(x - 1)
⇒ y = -2x + 2 + 2
⇒ y = -2x + 4
It looks like there are choices. If I don't get this the way your choices are written please leave a note under my answer.
total weight = w
w = n + bp + t
t = 70% * w <<<< One possible answer
t = (70/100)*W = 0.7*W Either one of these could be an answer.
n = 4 pounds
bp = 2 pounds
w = 4 + 2 + t Substitute for t
W = 6 + (70%W)
W = 6 + (70/100) * W
W = 6 + 0.7*W Subtract 0.7W from both sides.
W - 0.7W = 6
0.3W = 6 Divide by 0.3
W = 6/0.3
W = 20
t = (70/100*20 = 14 <<<< Could be an answer.
Please put the possible choices up soon. The mods can be very touchy about uncertain answers. They are correct to delete such questions.
