-40/80 = -1/2
since when you’re multiplying fraction, you multiply the top by the top number and bottom by the bottom number. So -4 • 10 is -40 and 5 • 16 is 80. -40/80, simplified is -1/2.
Y=3x+2
the slope (mx) is 3
the y-intercept (b) is 2.
the equation form is y=mx+b
Its the first one. Beacuse she gains speed then slows down and stops but then starts up again then slows down. Hope this helps!
5x-13=15+7x
-13=15+2x
-28=2x
-14=x
