Solve the system using elimination
y=-3x+6
y=x^2-4
1 answer:
Mutiply first equation by -1 and add to 2nd
-y=3x-6
<u>y=x^2-4 +</u>
0=x^2+3x-10
factor like any equation
what 2 numbers multiply to -10 and add to 3
-2 and 5
0=(x-2)(x+5)
set to zero
x-2=0
x=2
x+5=0
x=-5
solve for y in each case
for x=2
y=2^2-4
y=4-4
y=0
(2,0) is a point
for x=-5
y=(-5)^2-4
y=25-4
y=21
(-5,21) is another
the solutions are
(2,0) and
(-5,21)
You might be interested in
Answer:
The answer is letter A.
Step-by-step explanation:
y=mx+b
-3=(-1)(0)+b
-3=0+b
0 0
-3=b
y= -1x-3
That would be 1/8 times 288, so the answer would be 36 part time workers.
Answer:
How many groups are there or how many people are in each group
Step-by-step explanation:
9 feet = 108 inches
$9.72 divided by 108= 0.09
Answer:
2:15
Step-by-step explanation:
legit just mush it up and add or sum .-.