Answer:
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kx-4=9
Move -4 to the other side. Sign changes from -4 to +4
kx-4+4=9+4
kx=13
Divide by k for kx and 13
Cross out k and k = 1.
x=13/k
Answer: x=13/k
The only expressions are letters B and D
Think of the given points as endpoints of vectors.
The point (3, 1) is the terminus of the vector 3 i + j.
The point (-4, 2) is the terminus of -4 i + 2 j.
By the "triangle rule" for vector summation, the vector starting at (3, 1) and ending at (-4, 2) is the difference between these two vectors.
(-4 i + 2j) - (3i + j) = -7 i + j
Answer:
B. y - 1 = -4[x - (-3)]
Step-by-step explanation:
Given:
Slope = -4
Point = (-3, 1)
Required:
Point-slope form of the line
Solution:
Equation of a line in Point-slope form is given as y - b = m(x - a).
Where,
a = -3
b = 1
m = -4
Plug in the values
y - 1 = -4[x - (-3)]