Answer:
the second one 81^ 5/4
Step-by-step explanation:
Answer:
1: Estimate=60, answer, 58.82
2: Estimate= 100, answer, 102.83
3: Estimate= 70, answer 73
4: Estimate 230, answer 225.26
Step-by-step explanation:
Answer:
3/4
Step-by-step explanation:
Given two points , we find the slope using the formula
m = (y2-y1)/(x2-x1)
= ( 5 - -1)/ ( 6 - -2)
= (5+1)/( 6+2)
= 6/8
= 3/4
Answer: Assume c = 0
Step-by-step explanation:
Step-by-step explanation:
Assume c = 0
Using the formula for the x-coordinate of the vertex, b can be calculated in terms of a:
B can then be substituted into the quadratic equation, along with the coordinates of the vertex, to solve a:
AND
Substituting into the quadratic equation:
Because a is negative, the parabola opens up.
