I have a bad grade in math so someone should help me with this PLEASEE

A. Slope is -5. Y-intercept is (0,7)

Step-by-step explanation:

1. Find the slope using the slope formula and the coordinates

Remember, the slope formula is: y2-y1/x2-x1

You'll use the coordinates (0,7) (4, -13) to plug into the formula.

-13-7/4-0

= -20/4

= -5

Slope is -5

2. Find the y-intercept.

First, write the equation of the line in point-slope form: y-y1=m(x-x1)

M is slope and y1 and x1 can be from any ordered pair (as long as they're from the same one). Let's use (0,7)

y-7=-5(x-0)

Simplify the equation.

y-7=-5x+0

y=-5x+7

3. Now the equation is in y-intercept form, or y=mx+b. Again, M is slope. B is the y intercept. So, the y-intercept is 7

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.