It looks like it’s A because as the x values go to positive infinity, the graph shows how the y values starts to decrease and be negative. I hope it helps!
B. <span>Use their ATM card at a major bank once they reach their destination.
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We know that
The Standard Form of a Quadratic Equation<span> looks like this
</span> ax²<span> + bx + c = 0
</span>
we have
<span>x -1 0 1 2 3
y -20 -6 2 4 0
for x=0 y=-6
then
</span> y=ax² + bx + c --------> -6=a*0² + b*0 + c ---------> c=-6
for y=0 x=3
then
y=ax² + bx + c-------> 0=a*3² + b*3 -6---------> 9a+3b=6----> equation 1
for x=2 y=4
then
y=ax² + bx +
c-----> 4=a*2² + b*2 -6-----> 4=4a+2b-6-----> 4a+2b=10---->
a=2.5-0.5b----> equation 2
I substitute 2 in 1
9*[2.5-0.5b]+3b=6------>
22.5-4.5b+3b=6------> 1.5b=16.5------> b=11
a=2.5-0.5*11------>
a=2.5-5.5------> a=-3
The Standard
Form of a Quadratic Equation is
ax² + bx + c
= 0--------> -3x²+11x-6=0
the answer is
-3x²+11x-6=0
See the attached figure
Answer:
3/2
Step-by-step explanation:
In order to find the slope with two points, you use this formula:
y2-y1 / x2 - x1.
y2 is 5 and y1 is -4. 5 - -4 = 9
x2 is 2 and x1 is -4. 2 - - 4 = 6
9/6 = 3/2.
18. 1 3/4, 7/5, 1 3/10, 11/20, 1/4
19. 3 1/3, 2 1/5, 9/5, 9/10, 2/15