Can someone help me with these 2 questions?

Select a graph that have an equation with a < 0

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4