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Semmy [17]
2 years ago
11

Expand (2x + 2)(x + 4

Mathematics
2 answers:
sasho [114]2 years ago
7 0

Answer:

2x^2+10x+8

Step-by-step explanation:

(2x+2)(x+4)

=(2x+2)(x+4)

=(2x)(x)+(2x)(4)+(2)(x)+(2)(4)

=2x^2+8x+2x+8

=2x^2+10x+8

ArbitrLikvidat [17]2 years ago
7 0

Answer:

Work shown below!

Step-by-step explanation:

(2x+2)(x+4)=2x^{2} +8x+2x+8=2x^{2} +10x+8

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A line passes through the point (1, - 6) and has a slope of 8. Write an equation in slope-intercept form for this line.
Annette [7]

Answer:

\boxed {\boxed {\sf y=8x-14}}

Step-by-step explanation:

We are asked to find the equation of a line in slope-intercept form. We are given a point and a slope, so we can use the point-slope formula.

y-y_1= m(x-x_1)

In this formula, m is the slope and (x₁, y₁) is the point the line passes through. The slope of the line is 8 and it passes through the point (1, -6). Therefore,

  • m= 8
  • x₁= 1
  • y₁= -6

Substitute these values into the formula.

y- (-6) = 8(x-1)

Remember that 2 back to back subtraction signs are the same as an addition sign.

y+6=8(x-1)

The line must be in slope-intercept form or y=mx+b (m is the slope and b is the y-intercept. We must isolate the variable y on one side of the equation. First, distribute on the right side of the equation. Multiply each term inside the parentheses by 8.

y+6 = (8*x) + (8*-1)

y+6= (8x)+ (-8)

y+6=8x-8

6 is being added to y. The inverse operation of addition is subtraction, so we subtract 6 from both sides of the equation.

y+6-6=8x-8-6

y=8x-8-6

y= 8x-14

The equation of the line in slope-intercept form is <u>y=8x-14</u>. The slope is 8 and the y-intercept is -14.

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2 years ago
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What is the equation of the line that passes through the point (-6,6) and has an undefined slope ?
Likurg_2 [28]

Answer:

x = -6

Step-by-step explanation:

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