D is the answer for this question:))
Answer:
4:6
or 4/15 : 2/5
Step-by-step explanation:
"downward" is correct.
Matching
(-1/3)(x +2)² +5
to
a(x -h)² +k
we find h = -2, k = 5.
The vertex is (h, k) = (-2, 5).
Answer:
y-9=-4(x-2) or y=-4x-1
Step-by-step explanation:
First we must find the slope. Using the slope formula (diff y/diff x), we plug in using the given points;
(9-5)/(2-3)
=>4/-1 or just -4
Now, using the point slope formula, pick any point and plug into the formula y-y_1=m(x-x_1);
y-9=-4(x-2)
You can leave it just as this, if it asks specifically for slope-intercept form (y=mx+b) then just expand and simplify;
y-9=-4x+8
=> y=-4x-1
3x-5=-15 2x-7=-14 there you go