U could use Photomath for that
Answer:
x y
0 -1
-1 0
-8 7
Step-by-step explanation:
y = -x - 1
when x = 0, y = -1
when y = 0
0 = -x - 1
x = -1
when x = -8,
y = -(-8) - 1
y = 7
Answer:

By comparing both the equation we get that,
<h2>5a represent a <em><u>slope</u></em> in f(x)</h2>
490=10·40+15x
490=400+15x
90=15x
x=6
he worked a total of 46 hours