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  5. Topic 5 Writing Equations

Topic 5 Writing Equations

Authored by Anthony Clark

Mathematics

7th Grade

CCSS covered

Topic 5 Writing Equations
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20 questions

Show all answers

1.

MATH RESPONSE QUESTION

1 min • 1 pt

Media Image

Give final answers in slope-intercept form. Write the equation of the line that is parallel to the line below and passes through the point (−4, −13)\left(-4,\ -13\right) .

y=3x−1y=3x-1

Mathematical Equivalence

ON

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

True or False: When solving equations, the goal is to isolate the variable.


Isolate= to be by itself.

True

False

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Write an equation to represent the following description.  let n =number

19n+5=−1319n+5=-13

5n−19=−135n-19=-13

5n+19=−135n+19=-13

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

At a ​ dinner, an equal number of guests was seated at each of 5 large​ tables, and 4 ​late guests were seated at one smaller table.


There were 44 guests in all.


Let n=the number of people seated at each of the large​ tables.


What equation could you use to find the value of​ n?

5n+4=445n+4=44

4n+5=444n+5=44

5n−4=445n-4=44

5.

MATH RESPONSE QUESTION

1 min • 1 pt

Media Image

Write an equation in y=mx+b form.

y=−10x+375y=-10x+375

Mathematical Equivalence

ON

6.

MATH RESPONSE QUESTION

1 min • 1 pt

Media Image

Write an equation to show the height of the tomato plant.

y=3x+8y=3x+8

Mathematical Equivalence

ON

Answer explanation

Media Image

We can see the y-intercept in the table.

(0, b) = (0, 8), so b=8

m=11−81−0=3m=\frac{11-8}{1-0}=3

m = 3

b = 8

y=3x+8y=3x+8

Tags

CCSS.MATH.CONTENT.HSA.CED.A.2

CCSS.MATH.CONTENT.HSS.ID.C.7

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of these descriptions does the given equation​ represent?

Three more than nine times a number is 6.

If you subtract nine times a number from three​, you get 6.

Nine less than three times a number is 6.

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