Answer:
<h2><u><em>
1</em></u></h2>
Step-by-step explanation:
"Through any given two points X and Y, only one and only one line can be drawn "
<u><em>so 1</em></u>
Answer:
x=5
Step-by-step explanation:
7x-17=18
7x=18+17
7x=35
x=35/7
x=5
Point-slope form is y1 - y2 = m(x1 - x2). We know that the slope is 2, and we have a point of (1, -1). If we plug in our numbers, we will get y -(-1) = 2(x - 1). This gives us y + 1 = 2(x - 1). Therefore, the answer is B.
ANSWER
(-1,2)
EXPLANATION
The given quadratic expression is:

The coefficient of the quadratic term is already 1.
So we add and subtract the square of half the coefficient of x.

We factor the first three terms to obtain

This is now in the form:

where (h,k) which is equal to (-1,2) is the vertex.