4k-6=-2k-16-2
4k-6=-2k-18
6k-6=-18
6k=-12
k=-2
Answer:
52.5
Step-by-step explanation:
Sure I got time uh I’m not good at conversation starting but if you like anime I can talk about that for a long time but if I stop responding I’m probably doing homework
When you write URGENT the Brainly cops think you may be taking a test.
y = ax² + c thru (-1,4) and (0,8)
Substituting in the coordinates of each point for x and y gives two equations:
4 = a (-1)² + c
8 = a (0²) + c = c
From the second one we see c=8. Substituting into the first one,
4= a + 8
a = 4-8 = -4
Answer: a=-4, c=8
Check:
f(x) = -4x² + 8
f(0) = 8, good
f(-1) = -4(1) + 8 = 4, good
10 + 15x + x + 10
= 16x + 20
