m = , (x₁ , y₁) = (-2, -4)
y - y₁ = m(x - x₁)
y -(-4) = (x - (-2))
y + 4 = (x +2)
y + 4 = + 1
y = - 3
Answer: A
HELP ME PLEASE AB is parallel to CD. If the slope of AB is -3, what is the slope of CD ?
1 answer:
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Hey there!
Formula for the area of a triangle is (1/2)bh.
Base of this triangle is 5, height is 4.
Image attached.
Plug values into the formula:
A = (1/2)(5)(4)
Simplify.
A = (1/2)(20)
A = 10
Area of the triangle is 10 units².
Hope this helps!
Answer:
Step-by-step explanation:
The common ratio is given as 2, so the base of any exponential must be 2 (not -2 or 2.25). The 4th term is negative, so the initial value must be negative (since the multiplying factor is positive). The only selection matching these requirements is d.
You know the general term is ...
... an = a1·r^(n-1)
so the 4th term is
... -18 = a1·2^(4-1) = 8·a1
Then the first term is ...
... a1 = -18/8 = -2.25 . . . . . confirms our choice of answer d.