Write an equation in slope-intercept form using the given information about each line. Line goes through the points (2 , 8) and (4 , 9)

9514 1404 393

  y = 1/2x +7

Step-by-step explanation:

I like to start with the 2-point equation for a line.

  y = (y2 -y1)/(x2 -x1)(x -x1) + y1

  y = (9 -8)/(4 -2)(x -2) +8 . . . . . fill in point values

  y = 1/2(x -2) +8 . . . . . simplify a bit

  y = 1/2x +7

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1