Answer:
33
Step-by-step explanation:
Answer:
Final simplified form is 
Step-by-step explanation:
We have been given an expression 
Now we need to simplify
and check which choice matches with simplified form of
.
You missed to provide the choices but still we simplify that.



When there is negative sign inside square root then we replace that by "i" iota.

Hence final simplified form is 
Answer:
A.
Step-by-step explanation:
We are given the two points (2,7) and (4,-1). In order to determine the linear equation, we need to find the slope and the y-intercept. First, find the slope <em>m.</em> Let (2,7) be x1 and y1, and let (4,-1) be x2 and y2:

Thus, the slope is -4.
Now, to find the y-intercept, we can use the point-slope form. Recall that the point slope form is:

Where (x1, y1) is a coordinate pair and m is the slope.
Use either of the two coordinate pair. I'm going to use (2,7). Substitute them for x1 and y1, respectively:

This is also slope-intercept form. The answer is A.
Answer: y=-4x+11
Step-by-step explanation:
1. use formula y=mx+b
2. find the slope
3. plug in one of the points to find y int
Write each equation in standard form. Identify
the vertex, axis of symmetry, and direction of
opening of the parabola.
1.
ANSWER:
; vertex
(6, –32); axis of symmetry:
x = 6; opens upward
2.
ANSWER:
; vertex
(1, –7); axis of symmetry:
x = 1; opens upward
3.
ANSWER:
; vertex
(–27, 4); axis of symmetry:
y = 4; opens right
4.
ANSWER:
; vertex
(30, –2); axis of symmetry:
y = –2; opens left
Graph each equation.