Hello : let A(2,5) B(-1,8)<span>
<span>the slope is : (YB - YA)/(XB -XA)= (8-5)/(-1-2)=3/-3 = -1
</span></span><span>the equation in point-slope form is : y-5 = -(x-2)</span>
<span>they are perpendicular.</span>
Answer:
y=3x.........1
y=x^2-10.......2
substituting value of eq 1 to 2
3x=x^2-10
x^2-10-3x=0
x^2-3x-10=0
x^2-5x+2x-10=0
X(x-5)+2(x-5)=0
(x-5)(X+2)=0
then
X=5 or X=-2
again
y=??
when X=5
y=3×5=15
when X=-2
y=-6
Answer:
C. -10,000
Step-by-step explanation:
As x approaches zero, f(x) approaches infinity or negative infinity.
Answer: C. -10,000
Answer:
The cube of twice a number.
Twice a quantity usually indicates to take two of the things in question; usually this indicates to multiply by 2. Thus "twice a number x" can be written symbolically as 2x. If this is part of a problem, say twice a number x is 6, then we can rewrite algebraically as 2x=6; dividing both sides by 2 yields x=3.
Step-by-step explanation:
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