What is the equation of the line described below written in slope-intercept form?

the line passing through point (4, -1) and perpendicular to the line whose equation is 2x - y - 7 = 0

the options are:

a) y= -1/2x + 1
b) y= 1/2x - 1
c) y= 2x + 1

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Last week jason walked 3 1/4 miles each day for 3 days and 4 5/8 miles each day for 4 days. about how many miles did jason walk last week?