Answer:
Example
Step-by-step explanation:
The slope-intercept form is y=mx+b y = m x + b , where m m is the slope and b b is the y-intercept. Using the slope-intercept form, the slope is 3 3 . The equation of a perpendicular line to y=3x−5 y = 3 x - 5 must have a slope that is the negative reciprocal of the original slope.
Step-by-step explanation:
7x + 5y=1:
1. If x = -2 and y = 3 then the equation would be 7(-2)+5(3)
2. 7(-2)=-14 and 5(3)=15
3. -14+15=1
3x+2y=0:
1. If x = -3 and y = 4.5 then the equation would be 3(-3)+2(4.5)
2. 3(-3)=-9 and 2(4.5)=9
3. -9+9=0
Hope this helped! xx
<span>To factor out the expressions, we need to find two integers where the sum is equal to the coefficient of the second term and the product of the integers is equal to the constant.
1. d2 + 18d + 81
x1 = 9 : x2 = 9
9+9 = 18
9x9 = 81
</span><span>(d + 9)2
</span>
<span>2. d2 + 22d + 121
</span><span>x1 = 11 : x2 = 11
11+11 = 22
11x11 = 121
</span>(d + 11)2<span>
</span>3. r2 – 49
x1 = -7 : x2 = 7
-7 + 7 = 0
-7x7 = -49
<span>(r – 7)(r + 7)</span>
Answer:
2 x 6 is half of 4 x 6, so you can just multiply the product of 2 x 6 by 2.
Step-by-step explanation: