Answer:
a) 7/5
your y - intercept is wrong btw, the x should always be 0 on a y-intercept so it should be (0,7)
y-7 = 7/5 (x)
Step-by-step explanation:
given the x intercept = (-5,0) and the y intercept = (0,7), we can plug these points into the slop equation
y1-y2
____ = m
x1-x2
m = (0-7)/(-5-0) = -7/-5 = 7/5
slop-intercept form is basically point slope form
y-y1 = m(x-x1)
y-7 = 7/5(x-0)
Answer:
The change in the car's distance is 8 feet
Step-by-step explanation:
* Lets explain how to solve the problem
- A car is driving away from a crosswalk
- The distance d (in feet) of the car from the crosswalk t seconds
since the car started moving is given by the formula d = t² + 3.5
- The time increasing from 1 second to 3 seconds
- We need to now the change of the car's distance from the crosswalk
∵ The equation of the distance is d = t² + 3.5
∵ The time is 1 second
∴ d = (1)² + 3.5
∴ d = 1 + 3.5 = 4.5 feet
∵ The time is 3 seconds
∴ d = (3)² + 3.5
∴ d = 9 + 3.5 = 12.5 feet
∵ The change of the distance = d of 3 sec - d of 1 sec
∵ d of 3 sec = 12.5 feet
∵ d of 1 sec = 4.5 feet
∴ The change of the distance = 12.5 - 4.5 = 8 feet
∴ The change in the car's distance is 8 feet
Answer:
5k2
Step-by-step explanation:
5+3=8, 8-4=4, 4+1=5
Answer:
umm we can't see what ur talking about
Step-by-step explanation:
