Graph the equation y=x²-8x+7 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.
1 answer:
Answer:
vertex is: (4,-9)
y intercept= (0,7)
roots= (1,0) and (7,0)
Step-by-step explanation:
so we can use factoring to solve this quadratic equation real quick:
x^2-7x-1x+7
x(x-7)
-1(x-7)
(x-1)(x-7)=0
x-1=0
x=1
x-7=0
x=7
(1,0) and (7,0) are the roots
axis of symmetry: 8/2=4
substitute axsis of symmetry in equation to get vertex:
4^2-8(4)+7
16-32+7
-16+7=-9
vertex is: (4,-9)
y intercept= (0,7)
roots= (1,0) and (7,0)
Hope this helps
You might be interested in
Answer:
7 balls
Step-by-step explanation:
Look for the worst case scenario:
Get 3 white, 2 green, and 1 black.
That adds up to: 3 + 2 + 1 = 6.
+1 red ball: 6 + 1 =7
7 balls
Answer:
Pickup trucks 1/4 = 25%
25% of 64 cars = 16 Pickup trucks
Leaving us with 48 cars left.
"twice as many cars as there are SUVs."
32 = cars
16 = SUVs
Answer:
2.50 times 2 is 5. $5 is now 1 gallon. 5 time 6 equal $30. $30 dollar is your answer. Please mark brainly!!
Step-by-step explanation:
Answer:
D: 11
Step-by-step explanation:
mark brainliest
To find the answer you need to find the square root of e^2 to get e so what you do to one side of the equation you do to the other side of the equation so find the square root of 0.36. e=positive or negative 0.6