Interactive multiple-choice quiz: اختبار الوحدة الرابعة الرياضيات ريفيل الصف الثامن الفصل الأول لعام 2026 - 2027

A

Slope $\approx$ 333.3; sales increase about $333.30 per day; the unit rate is equal to the slope

B

Slope = 1000; sales increase $1000 per day; the unit rate equals the slope

C

Slope $\approx$ 333.3; sales increase about $333.30 per day; the unit rate is greater than the slope

D

Slope = 3; sales increase $3 per day; the unit rate is less than the slope

A

Brand A: $4.08 less

B

Brand B: $0.68 less

C

Brand B: $4.08 less

D

Brand A: $0.68 less

A

-120, because the starting amount is $120

B

20, because the money increases by $20 per game

C

-6, because the line reaches $0 after 6 games

D

-20, because the money decreases by $20 per game

A

Undefined

B

0

C

1

D

10

A

Slope: 2; $\triangle AHE, \triangle BID, \triangle CGF$

B

Slope: $\frac{1}{2}$; $\triangle ABD, \triangle DEF$

C

Slope: 2; $\triangle ABD, \triangle DEF$

D

Slope: $\frac{1}{2}$; $\triangle AHE, \triangle BID, \triangle CGF$

A

$\frac{x}{8}$; constant = 1/8; each ticket costs $0.125

B

y = 8x; constant = 8; each movie ticket costs $8

C

y = 40x; constant = 40; five tickets cost $8 each

D

y = 8x; constant = 8; 8 tickets cost $1

A

y = 2.55x; constant = 2.55; each ream costs $2.55

B

y = 5.10x; constant = 5.10; each ream costs $5.10

C

y = 2.55x; constant = 2.55; two reams cost $2.55

D

y = 10.20x; constant = 10.20; each ream costs $10.20

A

0.44x; the pressure is 297 psi

B

$y = \frac{29}{66}x$; the pressure is 130.5 psi

C

29x; the pressure is 8,613 psi

D

$y = \frac{66}{29}x$; the pressure is 675.7 psi

A

A direct variation, because the rate of change between the points is constant

B

A direct variation, because k = 7.75 for both points

C

Not a direct variation, because the slope of the line is negative

D

Not a direct variation, because the ratios y/x are not equal ($7.75 \neq 9$), so the line does not pass through the origin

A

-1

B

-3

C

1

D

3

A

y = x - 3

B

y = -x - 3

C

y = -3x - 1

D

y = -x + 3

A

y = 30x + 30

B

y = 30x

C

y = 60x + 30

D

y = 30x + 60

A

الشكل A

B

الشكل B

C

الشكل C

D

الشكل D

A

The y-intercept is 3

B

The slope of the line is $-\frac{3}{7}$

C

The equation of the line is $y = -\frac{7}{3}x - 7$

D

The equation of the line is y = 7

A

Quadrant II; because a negative slope means the line falls from left to right

B

Quadrant III; because the y-intercept is negative

C

Quadrant I; because for every x > 0, y = mx + b is negative, so no point of the line has both coordinates positive

D

Quadrant IV; because the line crosses the y-axis below the origin