Find the value of a if the line joining the points (3a,4) and (a,-3) has a gradient of 1
1 answer:
Recall that the slope or gradient of a line segment through two points is the ratio of the change in the <em>y</em> coordinate to the change in the <em>x</em> coordinate.
If the gradient is 1, then
1 = (-3 - 4) / (<em>a</em> - 3<em>a</em>)
Solve for <em>a</em> :
1 = -7 / (-2<em>a</em>)
1 = 7/(2<em>a</em>)
2<em>a</em> = 7
<em>a</em> = 7/2
You might be interested in
Answer:
I don't know sorry :)
Step-by-step explanation:
Answer:
the score that occurs most frequently
115 degrees as 70+40=115 and that is equal to ?
Answer: 1/6
Step-by-step explanation:
Divide both sides by 3 :
Answer A
<span>{x | x < -2}
</span>
hope this helps!