Answer:
vertex = (- 7, - 87)
Step-by-step explanation:
given a parabola in standard form : ax² + bx + c : a ≠ 0
Then the x- coordinate of the vertex is
= -
p² + 14p - 38 is in standard form
with a = 1, b = 14, c = - 38, hence
= -
= -7
substitute x = - 7 into the equation for corresponding value of y
y = (- 7)² + 14(- 7) - 38 = 49 - 98 - 38 - - 87
vertex = (- 7, - 87)
Answer:
The expression is
Jake has in his wallet
Step-by-step explanation:
Let
x-----> the money that Jake has in his wallet
we know that
The expression that represent the situation is equal to
1) Jake has $100 of birthday money in his wallet
so
2) He spends $15 at Twistee Treat and $10 at Wawa
so
3) He finds a $20 bill on the ground
so
3) His friend borrows $40 from Jake
so
4) At home, Jake mows the lawn and earns $35
so
